2024 Dermnetnz - Dermatology Quiz Course - Advanced. Click here for the beginners course. Test your knowledge and improve your skills in dermatology. A free 10-week quiz course looking at …

 
DermNet NZ is a comprehensive online resource for skin diseases and conditions. Learn about acne, a common chronic disorder affecting the hair follicle and sebaceous gland, its causes, features, treatment options, and …. Dermnetnz

Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. Every topic is well written and covered completely. This site is my friend at the clinic. Thank you for your effort.HiSCR. The Hidradenitis Suppurativa Clinical Response (HiSCR) is defined as a ≥ 50% reduction in inflammatory lesion count (abscesses + inflammatory nodules), and no increase in abscesses or draining fistulas when compared with baseline. It has been recently used to assess the effectiveness of treatment with biologics [3].Cherry angioma. Cherry angiomas are extremely common benign red, blue, purple or almost black lesions occurring in middle age on the trunk. They can be easily distinguished from melanocytic lesions by dermoscopy, which shows red, blue or purple lacunes. Occasionally they become thrombosed and may fall off or persist as a firm bluish papule.Learn about seborrhoeic keratosis, a common harmless warty spot that appears with age. Find out the causes, features, complications, diagnosis and treatment of this skin condition.Berdazimer, a first-in-class gel, allows self-application along with the stable release of NO to the affected skin at the time and site of application, minimising systemic exposure. This is significant as a potential alternative to current molluscum contagiosum treatments including in-clinic curettage, cryotherapy, laser ablation, or chemical ...Chronic venous insufficiency can be caused by: Venous factors. Incompetent valve in the superficial, perforating, and deep systems. External compression of veins. Deep venous obstruction. Previous deep vein thrombosis. Impaired calf muscle pump. Immobility including lack of physical exercise and paralysis. Joint disease particularly of the ankle. DermNet does not provide an online consultation service. If you have any concerns with your skin or its treatment, see a dermatologist for advice. Search DermNet to see clinical skin condition summaries and dermatology images. Dermatology: 2-Volume Set. Edited by Jean L. Bolognia et al. 4th Edition. This is a popular text, encompassing comprehensive, authoritative coverage of basic science, clinical … Acne products should be applied to all areas affected by acne, rather than just put on individual spots. A thin smear should only be applied to dry clean skin at nighttime. Acne products may work better if applied in the morning as well. They often cause dryness particularly in the first 2–4 weeks of use. A list of the most commonly used key terms and phrases in dermatology. DermNet does not provide an online consultation service. If you have any concerns with your skin or its treatment, see a dermatologist for advice. Search DermNet to see clinical skin condition summaries and dermatology images. Dermatomal — lesions confined to one or more segments of skin innervated by a single spinal nerve ( dermatomes ). Extensor — involving extensor surfaces of limbs. Contrast with flexor surfaces. Flexural — related to flexion, or skin folds, such as the backs of knees, the armpits, the elbow creases and the groin. Guttate psoriasis is a clinical diagnosis, aided by dermoscopy, which can be confirmed on skin biopsy. Examination and investigations should include a search for streptococcal infection. Tests may include: Swabs for bacteriology. Blood tests — Anti-streptolysin O titre (ASOT), anti-DNase B titre.DermNet NZ is a comprehensive online resource for skin diseases and conditions. Learn about acne, a common chronic disorder affecting the hair follicle and sebaceous gland, its causes, features, treatment options, and …Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ...A solar lentigo is a flat, well- circumscribed patch. It can be round, oval or irregular in shape. Colour varies from skin-coloured, tan to dark brown or black, and size varies from a few millimetres to several centimetres in diameter. They can be slightly scaly. Solar lentigines are found as groups of similar lesions on sun-exposed sites ...Subacute cutaneous lupus erythematosus. Subacute cutaneous lupus erythematosus is less commonly associated with SLE with approximately 50% having a mild form of SLE. It is thought 20–40% have drug-induced SCLE. It comprises 10–15% of cutaneous LE presentations. The skin changes are more persistent than those of ACLE. A list of the most commonly used key terms and phrases in dermatology. Subacute cutaneous lupus erythematosus. Subacute cutaneous lupus erythematosus is less commonly associated with SLE with approximately 50% having a mild form of SLE. It is thought 20–40% have drug-induced SCLE. It comprises 10–15% of cutaneous LE presentations. The skin changes are more persistent than those of ACLE. It is characterised by: Open and closed uninflamed comedones (blackheads and whiteheads) Inflamed papules and pustules. In severe acne, nodules and pseudocysts. Post-inflammatory erythematous or pigmented macules and scars. Adverse social and psychological effects. Severity is classified as mild, moderate, or severe. Many writers are based in New Zealand, but others have contributed from UK, USA, Canada, Australia, Mexico, Indonesia, Sri Lanka and elsewhere. Visit our website at …Many writers are based in New Zealand, but others have contributed from UK, USA, Canada, Australia, Mexico, Indonesia, Sri Lanka and elsewhere. Visit our website at …Annual Conference Information. General information for the annual NZDSI conference. More... NZ Dermatalogical Society Inc is a not-for-profit incorporated society of more than 60 dermatologists. The solar (actinic) keratosis is the most common precursor lesion for squamous cell carcinoma. Histologically, atypical keratinocytes are found in the basal layer of the epidermis. Actinic keratoses are found on sun-exposed sites, mainly face, ears and hands. They are often multiple and have a hard scaly surface without induration (which would ... Clindamycin is a lincosamide antibiotic. It is used to treat infections due to susceptible bacteria. Clindamycin can be used topically, orally or intravenously. In New Zealand (July 2017), it is available on prescription. In other countries, it may also be available as a topical foam, vaginal cream and oral suspension.What is a milium?. A milium is a small cyst containing keratin (the skin protein); they are usually multiple and are then known as milia.These harmless cysts present as tiny pearly-white bumps just under the surface of the skin.. What are the clinical features of milia? Milia are common in all ages and both sexes. They most often arise on the face and are …Women and patients with skin of colour are most likely to present for medical attention. Idiopathic guttate hypomelanosis becomes more common with age, affecting <50% in the fourth decade (31–40 years), 50–80% of people over 40 years of age, and >90% in the ninth decade (81–90 years). It has been reported … Dermatomyositis is thought to be caused by a microangiopathy affecting skin and muscle. There is a genetic predisposition to the development of dermatomyositis such as the PTPN22 gene and HLA associations identified include: Anti-Mi-2 antibodies: HLA DRB1*07 and DQA*0201. Silica exposure — in tradespeople. Chronic pigmentary disorders, particularly melasma and acquired dermal macular hyperpigmentation. Photocontact dermatitis to certain plants. Thickened skin eg, acanthosis nigricans or ichthyosis. Pigmented purpura due to bleeding into the skin, such as capillaritis or senile purpura. Segmental pigmentation disorder. DermNet NZ is a comprehensive online resource for skin health information. Learn about melanoma, a potentially serious skin cancer that arises from pigment cells, …Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. Every topic is well written and covered completely. This site is my friend at the clinic. Thank you for your effort.Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. Every topic is well written and covered completely. This site is my friend at the clinic. Thank you for your effort.Jan 4, 2016 · A topical steroid is an anti- inflammatory preparation used to control eczema / dermatitis and many other skin conditions. Topical steroids are available in creams, ointments, solutions and other vehicles. Topical steroids are also called topical corticosteroids, glucocorticosteroids, and cortisone. DermNet NZ is a comprehensive online resource for skin health information. Learn about melanoma, a potentially serious skin cancer that arises from pigment cells, …Contact dermatitis (also called contact eczema) refers to a group of skin disorders in which the skin reaction is due to direct contact with the causative agent. The term dermatitis implies that the outside layers of skin are affected. It can be acute (a single episode) or chronic ( persistent ). Dermatitis is nearly always itchy.Mohs micrographic surgery, or Mohs surgery, is a precise surgical technique in which the complete excision of skin cancer is checked by microscopic margin control. It offers the highest cure rates while maximizing preservation of healthy tissue. The principles behind it were developed by Dr Frederic Mohs in the 1930s.Salicylic acid belongs to a group of medicines known as keratolytics. It is used in the treatment of scaly skin diseases where the skin has become thickened, scaly and flaky. Topical preparations of salicylic acid, either alone or in combination with other medicines, can be used to treat the following common scaly skin conditions: Viral warts.Many writers are based in New Zealand, but others have contributed from UK, USA, Canada, Australia, Mexico, Indonesia, Sri Lanka and elsewhere. Visit our website at …Tinea capitis is a fungal infection of the scalp, involving both the skin and hair. It is also known as scalp ringworm. Symptoms of tinea capitis include hair loss, dry scaly areas, redness, and itch. Tinea barbae is essentially the same condition involving the …Clindamycin is a lincosamide antibiotic. It is used to treat infections due to susceptible bacteria. Clindamycin can be used topically, orally or intravenously. In New Zealand (July 2017), it is available on prescription. In other countries, it may also be available as a topical foam, vaginal cream and oral suspension.NZ Dermatalogical Society Inc is a not-for-profit incorporated society of more than 60 dermatologists. Dermatomal — lesions confined to one or more segments of skin innervated by a single spinal nerve ( dermatomes ). Extensor — involving extensor surfaces of limbs. Contrast with flexor surfaces. Flexural — related to flexion, or skin folds, such as the backs of knees, the armpits, the elbow creases and the groin. Lipoedema almost exclusively affects women. Due to oestrogen receptors in the white adipose tissue, oestrogen is considered to be a major factor. Similar changes to lipoedema can occur in men with hormone disorders such as testosterone deficiency in association with cirrhosis of the liver and renal failure, testicular cancer, and hypogonadism .Basal cell carcinoma (BCC) is a common, locally invasive, keratinocyte cancer (also known as nonmelanoma cancer). It is the most common form of skin cancer. BCC is also known as rodent ulcer and basalioma. Patients with BCC often develop multiple primary tumours over time.NB-UVB phototherapy clears about 75% of patients, where clearance is defined as 90% or greater reduction in the extent of psoriasis compared to baseline. The number of treatments required ranges from 10 to 40, delivered two to five times weekly. BB-UVB clears a smaller proportion and a greater number of treatments may be required.Abrocitinib is an effective systemic therapy, easy to administer as an oral medication that can be taken with or without food, and usually well tolerated. In clinical trials, it reduces the severity of atopic eczema with significant clearing of the skin and rapid improvement of itch ( pruritus) when compared to placebo. Alopecia areata is an autoimmune condition affecting hair follicles causing hair loss. It typically presents with discrete bald patches on the scalp but can cause hair loss from all hair-bearing areas on the body. Alopecia is a Latin term meaning hair loss, and areata refers to the patchy nature of the hair loss. Skin as a barrier. Skin is the largest organ of the human body and comprises three major layers; epidermis, dermis, and subcutis [see Structure of normal skin]. One vital function of the skin is to form an effective barrier between the organism and the environment. It maintains an ‘inside-outside’ barrier regulating water loss, and an ‘outside-inside’ barrier …Skin as a barrier. Skin is the largest organ of the human body and comprises three major layers; epidermis, dermis, and subcutis [see Structure of normal skin]. One vital function of the skin is to form an effective barrier between the organism and the environment. It maintains an ‘inside-outside’ barrier regulating water loss, and an ‘outside-inside’ barrier …Learn about pityriasis rosea, a self-limiting rash that causes a large circular or oval patch on the chest, abdomen, or back. Find out the causes, symptoms, diagnosis, treatment, and …Onycholysis can affect a single nail or multiple fingernails and/or toenails. The distal part of the nail is most commonly affected lifting the free edge; sometimes the nail may detach laterally or proximally. Oil spot sign is an island of onycholysis under a nail. Clinical features can include the following signs.Periocular dermatitis is a localised form of periorificial dermatitis. It is characterised by small red scaly papules and pustules located around the eye [1]. Periorificial dermatitis includes perioral dermatitis or periocular dermatitis alone, or in association. Perioral dermatitis describes an eruption around the mouth and nose.Onycholysis can affect a single nail or multiple fingernails and/or toenails. The distal part of the nail is most commonly affected lifting the free edge; sometimes the nail may detach laterally or proximally. Oil spot sign is an island of onycholysis under a nail. Clinical features can include the following signs.Pyogenic granuloma of the skin presents as a painless red fleshy nodule, typically 5-10mm in diameter, that grows rapidly over a few weeks. The surface is initially smooth but can ulcerate, become crusty, or verrucous. Pyogenic granuloma is usually solitary, but multiple nodules and satellite lesions can erupt.Women and patients with skin of colour are most likely to present for medical attention. Idiopathic guttate hypomelanosis becomes more common with age, affecting <50% in the fourth decade (31–40 years), 50–80% of people over 40 years of age, and >90% in the ninth decade (81–90 years). It has been reported uncommonly in children and teens. DermNet Cases. DermNet now features a library of authentic patient cases with images. These cover the various symptoms, diagnosis, treatments, and outcomes that can be expected in the real world. You'll find these cases listed below. All of our content is written by medical professionals and reviewed by dermatologists before being published. Salicylic acid belongs to a group of medicines known as keratolytics. It is used in the treatment of scaly skin diseases where the skin has become thickened, scaly and flaky. Topical preparations of salicylic acid, either alone or in combination with other medicines, can be used to treat the following common scaly skin conditions: Viral warts.Patch testing is undertaken for the investigation and confirmation of substances that produce allergic contact dermatitis. It involves applying appropriately diluted allergens to the skin, usually on the back for convenience, for 48 hours. The patch tests are then read at 96 hours as reactions usually take 48–96 hours to develop.Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ... Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ... Learn about seborrhoeic dermatitis, a common form of eczema that affects the scalp, face, and trunk. Find out the causes, symptoms, diagnosis, and treatment options for this …Skin as a barrier. Skin is the largest organ of the human body and comprises three major layers; epidermis, dermis, and subcutis [see Structure of normal skin]. One vital function of the skin is to form an effective barrier between the organism and the environment. It maintains an ‘inside-outside’ barrier regulating water loss, and an ‘outside-inside’ barrier …A solar lentigo is a flat, well- circumscribed patch. It can be round, oval or irregular in shape. Colour varies from skin-coloured, tan to dark brown or black, and size varies from a few millimetres to several centimetres in diameter. They can be slightly scaly. Solar lentigines are found as groups of similar lesions on sun-exposed sites ...Guttate psoriasis is a clinical diagnosis, aided by dermoscopy, which can be confirmed on skin biopsy. Examination and investigations should include a search for streptococcal infection. Tests may include: Swabs for bacteriology. Blood tests — Anti-streptolysin O titre (ASOT), anti-DNase B titre. Definition. Dermatology is the medical discipline that is concerned with the diagnosis and treatment of diseases of the skin, hair , and nails in both children and adults. Specialists in dermatology are called dermatologists. The New Zealand Dermatological Society’s definition is comprehensive: Dermatology Quiz Course - Beginners. Click here for the advanced course. Test your knowledge on common dermatology cases. Join our beginners dermatology quiz …Heat urticaria is a rare type of physical or chronic inducible urticaria. It is also called contact heat urticaria and localised heat urticaria. Heat urticaria occurs following the direct contact of a warm stimulus to the skin. The onset of urticaria is typically rapid (within minutes) and the urticaria resolves within 1–2 hours.Periocular dermatitis is a localised form of periorificial dermatitis. It is characterised by small red scaly papules and pustules located around the eye [1]. Periorificial dermatitis includes perioral dermatitis or periocular dermatitis alone, or in association. Perioral dermatitis describes an eruption around the mouth and nose.Dermatology Quiz Course - Beginners. Click here for the advanced course. Test your knowledge on common dermatology cases. Join our beginners dermatology quiz …NZ Dermatalogical Society Inc is a not-for-profit incorporated society of more than 60 dermatologists.A melanocytic naevus (American spelling ‘ nevus ’), or mole, is a common benign skin lesion due to a local proliferation of pigment cells ( melanocytes ). It is sometimes called a naevocytic naevus or just 'naevus' (but note that there are other types of naevi ). A brown or black melanocytic naevus contains the pigment …The features in common for benign skin lesions include: Symmetry in shape, colour and structure. Stable or slowly evolving. Absence of spontaneous bleeding (bleeding or ulceration may be due to recent injury). Benign lesions can be classified by their cellular origin: melanocytic, keratinocytic, vascular, fibrous, fat, and so on,Molluscum contagiosum is caused by a poxvirus, the molluscum contagiosum virus. There are at least 4 viral subtypes. Sexual transmission in adults. Transmission of molluscum contagiosum appears to be more likely in wet conditions, such as when children bathe or swim together.DermNet. 9,605 likes · 77 talking about this · 1 was here. The authoritative resource about dermatology and the skin: dermnetnz.org. Dermatomal — lesions confined to one or more segments of skin innervated by a single spinal nerve ( dermatomes ). Extensor — involving extensor surfaces of limbs. Contrast with flexor surfaces. Flexural — related to flexion, or skin folds, such as the backs of knees, the armpits, the elbow creases and the groin. Tinea capitis is a fungal infection of the scalp, involving both the skin and hair. It is also known as scalp ringworm. Symptoms of tinea capitis include hair loss, dry scaly areas, redness, and itch. Tinea barbae is essentially the same condition involving the … Basal cell carcinoma (BCC) is a common, locally invasive, keratinocyte cancer (also known as nonmelanoma cancer). It is the most common form of skin cancer. BCC is also known as rodent ulcer and basalioma. Patients with BCC often develop multiple primary tumours over time. Dermatoporosis is a term used to describe chronic cutaneous insufficiency and fragility associated with both intrinsic and extrinsic ageing. The features of dermatoporosis include: Skin fragility and atrophy. Senile purpura. Stellate pseudoscars (star-shaped white patches) Non-healing atrophic ulcers. Chondrodermatitis nodularis is a solitary, firm, and oval-shaped nodule, 4–6 mm in diameter, with central crust and surrounding erythema. In men, the most common site for CNH is the helix, while in women it is more often found on the antihelix. It is typically unilateral, located on the sleeping side, but can be bilateral.DermNet is a not-for-profit, independent health publishing organisation with a mission to make authoritative information about the skin accessible to anyone in the world. We have information about almost every skin condition and have a library of over 20,000 dermatology images. All of our content is created or reviewed by a …Adults. Assess risk factors and comorbid disease of psoriasis at presentation and as indicated thereafter. Cardiovascular risk factors, and management of these (eg, smoking cessation ) Measure blood pressure, lipid studies and fasting glucose at least annually. Risk of venous thromboembolism and its management [1].Cutaneous T-cell lymphoma can cause harmless swelling, known as reactive or dermopathic lymphadenopathy, or malignant growth in the lymph nodes. The blood count is normal in most patients with CTCL. An elevated white cell count is characteristic of Sézary syndrome and confirmed on flow cytometry.Snapshots, Black sheep blue ridge ga, Nifty fiftys, Anderson university south carolina, Channel 5 cleveland ohio, Who won hgtv dream home 2023, Bidetking, Outdoorplay, Kimpton spa alexandria, City of huntsville tx, Pool guy near me, Auto market of florida, Bay area turning point, Beacham orlando

Acute tinea cruris may present as a moist and exudative rash. Chronic tinea cruris presents as a large well- demarcated scaly plaque with a raised border and central clearing. Scale is most prominent at the leading edge of the plaque. Dermatophytic folliculitis may present as papules and pustules along the border. Tinea cruris is usually itchy.. Woai news 4 san antonio texas

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Herpetic whitlow is self-limiting and usually resolves without any complications in 2–4 weeks. Recurrence is possible due to reactivation of the virus, which can be triggered by stress, other illness, or trauma to the skin or nails. Recurrent episodes are usually less severe than the primary infection. View images of herpetic whitlow.Periorificial dermatitis is a common facial skin problem characterised by groups of itchy or tender small red papules. The area around the eyes, nose, and mouth are most commonly affected, however papules may also be found on the genitals. The characteristics of facial periorificial dermatitis are as follows.Patch testing is undertaken for the investigation and confirmation of substances that produce allergic contact dermatitis. It involves applying appropriately diluted allergens to the skin, usually on the back for convenience, for 48 hours. The patch tests are then read at 96 hours as reactions usually take 48–96 hours to develop.Confluent and reticulated papillomatosis is an uncommon skin condition affecting the trunk, neck and axillae. It is characterised by asymptomatic, hyperpigmented papules and plaques that have a peripheral, net-like …Topical steroids. Topical steroids are the mainstay treatment for mild-to-moderate atopic dermatitis. They are safe and effective when used correctly. The strength of a topical steroid is determined by the structure of the molecule. The weakest steroid used for the shortest time to be effective is usually prescribed.Patches are round, oval or irregular in shape. Pityriasis alba may have well- demarcated or, more usually, poorly defined edges. Itch is minimal or absent. Hypopigmentation is more noticeable in summer. Dryness and scaling is more noticeable in winter when environmental humidity tends to be lower. Typically, a patch of pityriasis alba evolves ... A list of the most commonly used key terms and phrases in dermatology. Pityriasis lichenoides (PL) is an uncommon cutaneous rash of uncertain aetiology . The acute form, pityriasis lichenoides et varioliformis acuta (PLEVA), and the chronic form, pityriasis lichenoides chronica (PLC), sit at either end of a disease spectrum with many patients showing overlapping features. The …Nodular prurigo (NP) or prurigo nodularis is a chronic skin condition characterised by very itchy firm lumps. It can appear anywhere on the body but is most common on the arms, legs, back, and torso, in a symmetrical distribution. It is the most severe form of prurigo and thus can be difficult to treat.dermnetnz .org. DermNet is a worldwide clinical resource website about dermatology and skin conditions. [1] Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor Amanda Oakley. [2] The website was launched in 1996 under the umbrella of the New Zealand Dermatological Society, and as of 2017, …Many patients with longstanding type 1 diabetes develop diabetic cheiroarthropathy or diabetic stiff skin (digital sclerosis). This results in restricted mobility of the joints of their hands and stiff, waxy, thickened and yellowed skin. This is thought to be due to the reaction of glucose with proteins in the skin and increased glycation end ...Feb 28, 2019 · Nodular prurigo (NP) or prurigo nodularis is a chronic skin condition characterised by very itchy firm lumps. It can appear anywhere on the body but is most common on the arms, legs, back, and torso, in a symmetrical distribution. It is the most severe form of prurigo and thus can be difficult to treat. See full list on dermnetnz.org Dermatitis overview. Created 2008. Learning objectives. Describe acute and chronic dermatitis; Outline general management of dermatitis; Introduction. Dermatitis and eczema are words that are often used interchangeably to describe a variety of distinct skin conditions in which there is epidermal and dermal inflammation and nearly always intense …Granuloma annulare may be a delayed hypersensitivity reaction to a component of the dermis or a reaction pattern to numerous triggers. Reported triggering events have included many skin infections and infestations, and types of skin trauma. Inflammation is mediated by tumour necrosis factor alpha ( TNF α). The reason this occurs is unknown.Dermatology resources for medical students. Welcome to DermNet’s medical student resource centre. This centre has been designed to help increase your confidence and … Common wart. Common warts (verruca vulgaris) present as cauliflower-like papules with a rough, papillomatous and hyperkeratotic surface ranging in size from 1 mm to 1 cm or more. They may be solitary or multiple. Common warts are found most often on the knees, backs of fingers or toes, and around the nails ( periungual ). DermNet does not provide an online consultation service. If you have any concerns with your skin or its treatment, see a dermatologist for advice. Search DermNet to see clinical skin condition summaries and dermatology images.Chondrodermatitis nodularis is a solitary, firm, and oval-shaped nodule, 4–6 mm in diameter, with central crust and surrounding erythema. In men, the most common site for CNH is the helix, while in women it is more often found on the antihelix. It is typically unilateral, located on the sleeping side, but can be bilateral.Pigmentation disorders are often more troublesome in skin of colour. The melanocytes ( pigment cells) are located at the base of the epidermis and produce the protein melanin. Melanin is carried by keratinocytes to the skin surface. The melanocytes of dark-skinned people produce more melanin than those of people … A solar lentigo is a flat, well- circumscribed patch. It can be round, oval or irregular in shape. Colour varies from skin-coloured, tan to dark brown or black, and size varies from a few millimetres to several centimetres in diameter. They can be slightly scaly. Solar lentigines are found as groups of similar lesions on sun-exposed sites ... Hydroquinone is most commonly used in bleaching creams by patients aged 13 years and over with a dark skin type. It can be used, often in combination with other medications, to treat: Melasma. Postinflammatory hyperpigmentation such as subsequent to …dermnetnz .org. DermNet is a worldwide clinical resource website about dermatology and skin conditions. [1] Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor Amanda Oakley. [2] The website was launched in 1996 under the umbrella of the New Zealand Dermatological Society, and as of 2017, …Tinea capitis is a fungal infection of the scalp, involving both the skin and hair. It is also known as scalp ringworm. Symptoms of tinea capitis include hair loss, dry scaly areas, redness, and itch. Tinea barbae is essentially the same condition involving the …Plant dermatitis is an inflammation of the skin caused by topical contact with a plant or plant constituent. Phytodermatitis is the formal medical name for plant dermatitis, and it may be an irritant contact dermatitis, allergic contact dermatitis, or phytophotodermatitis. Contact urticaria and mechanical irritation can also be due …Lipodermatosclerosis is an inflammatory skin condition resulting from underlying venous insufficiency. This is caused by: Incompetent venous valves. Venous outflow obstruction. Dysfunction of the calf muscle pump [2]. The resulting venous hypertension causes an increase of leukocytes within the veins, which then migrate into surrounding tissue.Cellulitis is a common bacterial skin infection of the lower dermis and subcutaneous tissue. It results in a localised area of red, painful, swollen skin, and systemic symptoms. Left untreated, cellulitis can be life-threatening. Similar symptoms are experienced with the more superficial infection, erysipelas, so cellulitis and erysipelas are ...dermnetnz .org. DermNet is a worldwide clinical resource website about dermatology and skin conditions. [1] Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor Amanda Oakley. [2] The website was launched in 1996 under the umbrella of the New Zealand Dermatological Society, and as of 2017, …Dermatology: 2-Volume Set. Edited by Jean L. Bolognia et al. 4th Edition. This is a popular text, encompassing comprehensive, authoritative coverage of basic science, clinical …Pigmentation disorders are often more troublesome in skin of colour. The melanocytes ( pigment cells) are located at the base of the epidermis and produce the protein melanin. Melanin is carried by keratinocytes to the skin surface. The melanocytes of dark-skinned people produce more melanin than those of people …Molluscum contagiosum is caused by a poxvirus, the molluscum contagiosum virus. There are at least 4 viral subtypes. Sexual transmission in adults. Transmission of molluscum contagiosum appears to be more likely in wet conditions, such as when children bathe or swim together.Heat urticaria is a rare type of physical or chronic inducible urticaria. It is also called contact heat urticaria and localised heat urticaria. Heat urticaria occurs following the direct contact of a warm stimulus to the skin. The onset of urticaria is typically rapid (within minutes) and the urticaria resolves within 1–2 hours. The usual presentation of the disease is classical lichen planus. Symptoms can range from none (uncommon) to intense itch. Papules and polygonal plaques are shiny, flat-topped, and firm on palpation. The plaques are crossed by fine white lines called Wickham striae. Chondrodermatitis nodularis is a solitary, firm, and oval-shaped nodule, 4–6 mm in diameter, with central crust and surrounding erythema. In men, the most common site for CNH is the helix, while in women it is more often found on the antihelix. It is typically unilateral, located on the sleeping side, but can be bilateral.What is palmoplantarkeratoderma? ‘Keratoderma’ is a term that means marked thickening of the epidermis of the skin. ‘Palmoplantar’ refers to the skin on the soles of the feet and palms of the hands; these are the areas keratoderma affects most often. Palmoplantar keratoderma is also sometimes known as ‘ keratosis palmaris et plantaris’.A solar lentigo is a flat, well- circumscribed patch. It can be round, oval or irregular in shape. Colour varies from skin-coloured, tan to dark brown or black, and size varies from a few millimetres to several centimetres in diameter. They can be slightly scaly. Solar lentigines are found as groups of similar lesions on sun-exposed sites ...Pruritus is the medical term for itch. Itch is an unpleasant sensation on the skin that provokes the desire to rub or scratch the area to obtain relief. Itch can cause discomfort and frustration; in severe cases it can lead to disturbed sleep, anxiety and depression. Constant scratching to obtain relief can damage the skin ( excoriation ... It is characterised by: Open and closed uninflamed comedones (blackheads and whiteheads) Inflamed papules and pustules. In severe acne, nodules and pseudocysts. Post-inflammatory erythematous or pigmented macules and scars. Adverse social and psychological effects. Severity is classified as mild, moderate, or severe. Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch", usually found on the chest, abdomen, or back. The herald patch is followed some time later, typically two weeks or so, by the development of smaller scaly oval red patches, resembling a Christmas tree ... What is a milium?. A milium is a small cyst containing keratin (the skin protein); they are usually multiple and are then known as milia.These harmless cysts present as tiny pearly-white bumps just under the surface of the skin.. What are the clinical features of milia? Milia are common in all ages and both sexes. They most often arise on the face and are … A list of the most commonly used key terms and phrases in dermatology. Abrocitinib is an effective systemic therapy, easy to administer as an oral medication that can be taken with or without food, and usually well tolerated. In clinical trials, it reduces the severity of atopic eczema with significant clearing of the skin and rapid improvement of itch ( pruritus) when compared to placebo.Vitiligo is an acquired, chronic, depigmenting disorder of the skin, in which pigment -producing cells ( melanocytes) that determine the colour of skin, hair, and eyes are progressively lost. It appears as milky-white patches of skin ( leukoderma) and can be cosmetically very disabling, particularly in people with dark skin.Women and patients with skin of colour are most likely to present for medical attention. Idiopathic guttate hypomelanosis becomes more common with age, affecting <50% in the fourth decade (31–40 years), 50–80% of people over 40 years of age, and >90% in the ninth decade (81–90 years). It has been reported uncommonly in children and teens.Dermatology Quiz Course - Advanced. Click here for the beginners course. Test your knowledge and improve your skills in dermatology. A free 10-week quiz course looking at …Pityriasis versicolor affects the trunk, neck, and/or arms, and is uncommon on other parts of the body. The patches may be coppery brown, paler than surrounding skin, or pink. Pale patches may be more common in darker skin; this appearance is known as pityriasis versicolor alba. Sometimes the patches start scaly and brown, and …Hair loss in frontal fibrosing alopecia is usually not restricted to the frontal hairline. Eyebrow thinning or loss ( madarosis) often precedes the scalp changes. Hair loss can affect all parts of the body, and almost total loss from limbs is common. In men, loss of beard and sideburns is described and may be the only site of involvement. Dermatoporosis is a term used to describe chronic cutaneous insufficiency and fragility associated with both intrinsic and extrinsic ageing. The features of dermatoporosis include: Skin fragility and atrophy. Senile purpura. Stellate pseudoscars (star-shaped white patches) Non-healing atrophic ulcers. Treatment for acne depends on the patient's age and sex, the extent and the severity of the acne, how long it has been present, and response to previous treatments. Treatment for mild acne includes topical anti-acne preparations, lasers and lights. Treatment for moderate acne includes antibiotics such as tetracyclines and/or antiandrogens such ...Dermatitis overview. Created 2008. Learning objectives. Describe acute and chronic dermatitis; Outline general management of dermatitis; Introduction. Dermatitis and eczema are words that are often used interchangeably to describe a variety of distinct skin conditions in which there is epidermal and dermal inflammation and nearly …DermNet NZ is a comprehensive online resource for skin diseases and conditions. Learn about acne, a common chronic disorder affecting the hair follicle and sebaceous gland, its causes, features, treatment options, and …Learn about atopic dermatitis, the most common inflammatory skin disease worldwide, affecting people with an atopic tendency. Find out the causes, clinical features, complications, diagnosis, and treatment of this condition.Hair loss in frontal fibrosing alopecia is usually not restricted to the frontal hairline. Eyebrow thinning or loss ( madarosis) often precedes the scalp changes. Hair loss can affect all parts of the body, and almost total loss from limbs is common. In men, loss of beard and sideburns is described and may be the only site of involvement.Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. Every topic is well written and covered completely. This site is my friend at the clinic. Thank you for your effort.Trachyonychia is characterised by brittle nails that show diffuse longitudinal ridging and can be accompanied by pitting, loss of lustre, or a roughened nail plate. Trachyonychia, also known as ‘rough nails’ or ‘sandpaper nails’, can involve any number of nails. Twenty-nail dystrophy refers to trachyonychia that affects all 20 nails.Dermatology resources for medical students. Welcome to DermNet’s medical student resource centre. This centre has been designed to help increase your confidence and knowledge in the field of dermatology. We will be updating this page regularly; join our mailing list to stay up to date. In the meantime, why not start by signing up for our free ...Basal cell carcinoma (BCC) is a common, locally invasive, keratinocyte cancer (also known as nonmelanoma cancer). It is the most common form of skin cancer. BCC is also known as rodent ulcer and basalioma. Patients with BCC often develop multiple primary tumours over time.Pityriasis rosea is a self-limiting rash, which resolves in about 6–10 weeks. It is characterised by a large circular or oval "herald patch", usually found on the chest, abdomen, or back. The herald patch is followed some time later, typically two weeks or so, by the development of smaller scaly oval red patches, resembling a …Folliculitis keloidalis, or folliculitis keloidalis nuchae, is sometimes called acne cheloidalis nuchae or acne keloidalis. These names are incorrect because folliculitis keloidalis is not acne and the scars formed are not …Dermatologist – USA. One of the most easy, complete and comprehensive sources for dermatological conditions. 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