1 d
Dermnet nz?
Follow
11
Dermnet nz?
Autosensitisation dermatitis is the rash that appears on the trunk and limbs due to generalisation of a previously localised condition such as asteatotic or venous eczema. Onychomatricoma is typically slow-growing and painless. Clinically and immunologically, Senear-Usher syndrome shares features of SLE. " Learn about atopic dermatitis, the most common inflammatory skin disease worldwide, affecting people with an atopic tendency. Authoritative facts from DermNet New Zealand. Authoritative facts from DermNet New Zealand. Flexural skin has a relatively high surface temperature. Usually found on an eyelid, behind the ear, on a cheek or jaw. Nail psoriasis affects 90% of patients with chronic plaque psoriasis at some time in their life. Are you planning an exciting adventure in New Zealand with your caravan? One of the most important aspects of preparing for your trip is ensuring that you have the right caravan pa. Ephelides can also occur in other races that have dark brown or black hair. DermNet NZ is a non-profit website that provides information on skin conditions and dermatology. A UK study reported an average prevalence of 2% (range 01%) in the general population. A pink base with a hyperkeratotic top on the nasal bridge - a common site for actinic keratoses. The incidence in the UK is approximately 20/100000 children (under 17 years old) per year and the incidence of HSP thought to be similar in New Zealand. Guidelines for the outpatient management. Histology of squamous cell carcinoma in situ. ' Palmoplantar ' refers to the skin on the soles of the feet and palms of the hands; these are the areas keratoderma affects most often. Scarlet fever usually starts with a sudden fever associated with sore throat, swollen neck glands, headache, nausea, vomiting, loss of appetite, swollen and red strawberry tongue, abdominal pain, body aches, and malaise. WE WANTED TO SEE New Zealand but we would only settle for the road. With thousands of listings available at any given t. A pathergy test is usually positive. Significant mucosal involvement distinguishes erythema multiforme major from multiforme minor. Actinic keratosis is a precancerous scaly spot found on sun-damaged skin, also known as solar keratosis. Mar 23, 2015 · Macular amyloidosis is generally pruritic, although the degree of pruritus varies from mild to severe. Medical risk factors include: Previous or concurrent tinea infection Immunodeficiency. Distorted hair growth, known as the hair collar sign, is a marker for an underlying cranial defect such as encephalocoele, meningocoele, and brain tissue outside the skull. During pregnancy, the severity of acne can improve or get worse. Tinea corporis is found in most parts of the world, but particularly in hot humid climates. Pityriasis rosea is a self-limiting rash that usually affects the chest and back. Skin feels hot to touch Pruritus is the medical term for itch. Hydroquinone is used in a cream or lotion formulation in a concentration of 1-5%. Guidelines for the management of psoriasis updated 2020. Deep venous obstruction. It is also sometimes called a labial lentigo and when multiple lesions are present, mucosal melanosis. Dry nummular dermatitis. Patches may also appear on the neck, shoulders, and upper arms and are uncommon elsewhere. In New Zealand (2016) it is available as 250 mg tablets (Dr Reddy's Terbinafine, fully funded by PHARMAC) and Terbinafine-DRLA. See full list on dermnetnz. A morbilliform skin rash in an adult is usually due to a drug. Pityriasis rosea is a self-limiting rash that usually affects the chest and back. Your CV serves as your first impression on potential employers, and it can make or break. Keratosis pilaris is also called ulerythema ophryogenes. Transient lingual papillitis is a common painful inflammatory condition affecting one or several fungiform papillae on the tongue. Melasma is a common acquired skin disorder that presents as a bilateral, blotchy, brownish facial pigmentation. However, healthy people do not normally develop pseudomonas infection. Itch is defined by a desire to scratch. New Zealand is synonymous with geographic diversity of fairytale proportions. According to DermNet NZ, the medical term for a freckle is ephilis. Any age can be affected; the average age of onset is between 35 and 45 years. Clinical features include a solitary or multiple tumours, typically red, dome-shaped nodule that may be bleeding, ulcerated or crusted. The colour disappears on compression of the macule or papule due to the clearance of blood from the dilated venule. Authoritative facts from DermNet New Zealand. Molluscum contagiosum tends to be more numerous and last longer in children who also have atopic dermatitis, due to. The source of the skin problem may be the fabric itself (i reaction to textile fibres) or more commonly a contact allergy to the chemical additives used in processing the. Angular cheilitis is due to one or more of the following factors. Treatment. An itchy, red rash is the signature sign of contact dermatitis, but how the rash appears can vary. Burning mouth syndrome is a chronic pain syndrome strictly defined as a burning painful sensation in the mouth (oral dysaesthesia) with normal clinical examination and no obvious organic cause. Vesicles are small blisters less than 5 mm in diameter. Similar symptoms are experienced with the more superficial infection, erysipelas, so cellulitis and erysipelas are. Erythromelalgia, Weir Mitchell disease, Erythralgia, Erythermalgia. Naevi are further classified based on the cell type involved. It is also sometimes called a labial lentigo and when multiple lesions are present, mucosal melanosis. Mycoplasma pneumoniae is a bacterial organism that can cause respiratory tract infections. Recent developments in deep learning-based CNN models have … NZ TEX GROUP is a privately held world class textile conglomerate in Bangladesh. A UK study reported an average prevalence of 2% (range 01%) in the general population. Learn about psoriasis, a chronic inflammatory skin condition with red and scaly plaques, its types, causes, diagnosis and treatment options. Superficial spreading melanoma is due to the development of malignant pigment cells (melanocytes) along the basal layer of the epidermis. Photodynamic therapy (PDT) is a treatment used mainly for superficial types of skin cancer. Visceral infantile haemangiomas. Pemphigus vulgaris accounts for 70% of all pemphigus cases worldwide although it is extremely rare in New Zealand (about one case per million of the population). Distorted hair growth, known as the hair collar sign, is a marker for an underlying cranial defect such as encephalocoele, meningocoele, and brain tissue outside the skull. Otitis externa, also called external otitis or 'swimmer's ear', is a common inflammatory condition of the external auditory canal (the ear canal). Patch size varies from 0. Complications associated with prematurity can be due to an underdeveloped and compromised skin. See more images of erythroderma. A well-designed and strategically located warehouse can significantly impact. T cells and fibroblasts also participate in this inflammatory response [3]. Go to the atopic dermatitis topic page. See more images of erythroderma. It is more prevalent in warm climates than cool ones, and in overcrowded environments. The hair pull test is negative (away from areas of hair loss) in male. About 25% develop within an existing melanocytic naevus, which can be a normal common naevus, an atypical or dysplastic naevus, or a congenital naevus. Annular erythema may occur at any time throughout life, from infancy to old age. Premature infants are babies born before 37 weeks of pregnancy, with further classification by gestational age as preterm (32-37 weeks), very preterm (28-32 weeks), or extremely preterm/ultra-low birthweight (less than 28 weeks and/or less than 1000g). Closer inspection reveals atypia of the keratinocytes across the full thickness of the epidermis (Figures 2 and 3). The prevalence of pollen-food. Search DermNet Ctrl K. A +/- reaction is irritant or indeterminate and indicates that the individual should use PPD hair dyes cautiously. The terminology of livedo reticularis may include: Livedo racemosa: a generalised and persistent form of livedo. Closer inspection reveals atypia of the keratinocytes across the full thickness of the epidermis (Figures 2 and 3). It is estimated that about 204 million people are affected by scabies worldwide, with an annual incidence of 455 million cases. Alopecia areata is the most common cause of one or more areas of localised baldness on the scalp and other hair-bearing areas. gone too soon nephew in heaven quotes Macular amyloidosis may co-exist with lichen amyloidosis in up to 25% of affected patients [9]. Roseola is characterised by high fever lasting for 3-5 days, runny nose, irritability and tiredness. The disseminated type is composed of small papules, usually arranged symmetrically in poorly-defined rings 10 cm or more in diameter. Hand, foot, and mouth disease (HFMD or HFM) is a common, self-limiting, viral infection that causes blisters on the hands, feet, and inside or around the mouth. A to Z directory of skin diseases, conditions, and their treatments from DermNet. It involves cytotoxic CD8+ T lymphocytes and pro-inflammatory cytokines, which attack the oral epithelial cells — resulting in their death. The odour may be worse after exercise, often adhering to clothing. Anetoderma lesions are most commonly found on the chest, back, neck and arms, but any site. Hypertrichosis may be congenital (present at birth. Localised pigmentation may be due to melanin, haemosiderin, or externally-derived pigment. If you have any concerns with your skin or its treatment, see a dermatologist for advice. Follicular pustules and perifollicular crusts at. Acrodermatitis enteropathica is a rare disorder associated with zinc deficiency. Necrotising fasciitis, Necrotising myositis, Necrotising cellulitis, Flesh eating disease, Haemolytic streptoccal gangrene, Meleney ulcer, Acute dermal gangrene, Hospital gangrene, Suppurative fasciitis, Synergistic necrotising cellulitis. arkansas lime company A pigmented Spitz naevus is a tan or brown papule or nodule. Acute flexural atopic dermatitis. Pyogenic granuloma is usually solitary, but multiple nodules and satellite lesions can erupt. Children under five years and adults over 65 years old are affected more often than other age groups. Lax beetles are common insects that are found worldwide, belonging to the family Oedemeridae [1-3]. The eruption affects the lines of Blaschko, which are thought to be embryonic in origin. With a rich history and a wide range of programming, TVNZ has become a staple in the l. The base of the horn may be flat, protruding, or like a crater. The top of the blister is rubbed off where skin is thinner, such as the top of the hand or foot, forming an abrasion. Authoritative facts from DermNet New Zealand. Its co-founder and former editor-in-chief is dermatologist and Adjunct Associate Professor Amanda Oakley. Nodular melanoma is an invasive form of melanoma. Give us your feedback. Necrotising fasciitis of the leg after a lower leg. People with white skin that cannot tan ( Fitzpatrick skin phototype 1) often have red hair and numerous ephelides. A topical antifungal medication is a cream, solution, lotion, powder, gel, spray or lacquer applied to the skin surface to treat a fungal infection. skipthegames springfield DermNet® is a not-for-profit, independent health publisher with a mission to make trustworthy information about the skin accessible to anyone. It affects as many as half of all full-term newborn infants but is less common in infants born prematurely. Telogen: resting phase for 1–4 months, up to 10% of hairs in a normal scalp. The surface is initially smooth but can ulcerate, become crusty, or verrucous. Anywhere on the skin, sometimes on mucous membranes. Clindamycin solution Whitfield ointment (3% salicylic acid, 6% benzoic acid in petrolatum). Contributing factors to scrotal lichen simplex may include [1-3,5]: Seborrhoeic dermatitis may affect infants, presenting within the first few months postpartum as cradle cap or napkin dermatitis. Eyelid contact dermatitis is an inflammatory reaction involving the eyelid skin that is caused by contact with a trigger substance. Acanthosis nigricans is usually a sign of an underlying condition or disease, such as obesity or diabetes ( benign ). A The epidermis is the uppermost or epithelial layer of the skin. Acute due to a single severe exposure. Authoritative facts about the skin from DermNet New Zealand. Login Search DermNet. Search DermNet Ctrl K. Topical aciclovir or penciclovir may shorten attacks of recurrent herpes simplex, provided the cream is started. It is not recommended for internal use or for extensive warts (more than 10 square centimetres). Notalgia means pain in the back, and paraesthetica refers to burning pain, tingling or itch. Originally developed for the University of Auckland Goodfellow Unit in 2007. Freckles form after pigment is accumulated in the skin from sun exposure. albicans and other Candida species ( tropicalis, parapsilosis, glabrata, guilliermondii) is most likely to affect mucosae but sometimes involves skin, and rarely causes systemic disease. There may be too much collagen; this is called a collagenoma. Eczematous cheilitis is inflammation of the lips presenting as redness with dryness and scaling.
Post Opinion
Like
What Girls & Guys Said
Opinion
74Opinion
Reactive arthropathy affects both men and women and is seen most commonly in young adults between the ages of 20 and 40 years [1]. Thick silvery or yellowish scales encircle the hair shafts and may bind down tufts of hair. Spindle cell melanoma is a rare histological variant of melanoma, characterised by the presence of spindle-shaped melanocytes [1]. Longitudinal overcurvature of the nail plate. It is a form of acquired dermal macular hyperpigmentation. The true prevalence is probably underestimated due to a failure to diagnose. Folliculitis keloidalis, or folliculitis keloidalis nuchae, is sometimes called acne cheloidalis nuchae or acne keloidalis. In a child, it is more likely to be viral in origin. Exudative nummular dermatitis. Closer inspection reveals atypia of the keratinocytes across the full thickness of the epidermis (Figures 2 and 3). It results from exposure to ultraviolet ( UV) radiation, which causes local proliferation of melanocytes and accumulation of melanin within the skin cells ( keratinocytes ). It occurs most often in fair skinned middle-aged women living in sunny climates. Episodes can be isolated, recurrent, or persistent. In New Zealand, famciclovir is not currently funded by PHARMAC (April 2019). Postpartum women can have increased skin sensitivity to environmental contact irritants and allergens, and those with atopic dermatitis can present with an atopic flare of nipple eczema. 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. Atopic dermatitis, also called atopic eczema, the most common inflammatory skin disease worldwide, presents as generalised skin dryness, itch, and rash. Cancer is more likely if the inflammatory disease is uncontrolled. Plantar wart. Deep-seated folliculitis barbae is called sycosis barbae and leads to scarring and areas of permanent hair loss. Streptococcus pyogenes and Staphylococcus aureus are the bacteria responsible for ecthyma. nearest marco With a rich history and a wide range of programming, TVNZ has become a staple in the l. We have evidence-based information on almost every skin condition and a library of over 20,000 dermatology images. It is most often seen as a complication of atopic dermatitis/eczema. Erysipelas, St Anthonys fire. Pityriasis rosea is a self-limiting rash that usually affects the chest and back. In some cases, systemic symptoms may develop ( anaphylaxis ) Shortness of breath. It is characterised by asymptomatic, hyperpigmentedpapules and plaques that have a peripheral, net-like configuration. It involves cytotoxic CD8+ T lymphocytes and pro-inflammatory cytokines, which attack the oral epithelial cells — resulting in their death. Friction from the movement of adjacent skin results in chafing. It nearly always affects adolescent males. Pemphigus vulgaris accounts for 70% of all pemphigus cases worldwide although it is extremely rare in New Zealand (about one case per million of the population). Viral skin infections Authoritative facts about the skin from DermNet New Zealand. It can assume a subtle rippled or reticulated pattern, which resembles the ‘seafloor pattern’ seen in lichen amyloidosis. Located in areas exposed to the sun such as the face and forearms. It is also prescribed for rheumatoid arthritis, psoriatic arthritis, and increasingly, other inflammatory and autoimmune disorders (off-label). Authoritative facts from DermNet New Zealand. Infection with low-risk types of HPV, such as types 6. The majority of patches are round or oval. There are clinical features in common for all three. cvs reddit Cancer is estimated to affect up to 5% of patients with vulval lichen sclerosus. They are often found around the skin folds of the trunk (armpits, groin). It can affect the skin, bone marrow, liver, spleen, gastrointestinal tract, or lymph nodes. Contact dermatitis may be due to allergic (type IV hypersensitivity reaction) or irritant dermatitis. Authoritative facts about the skin from DermNet New Zealand. Poikiloderma of Civatte is a benign, common and chronic condition, which belongs to the group of melanodermas (pigmented skin disorders). Benign familial pemphigus typically begins as a symmetrical painful erosive and crusted skin rash in the skin folds. A blistering disease is a condition in which there are fluid-filled skin lesions. Cancer is estimated to affect up to 5% of patients with vulval lichen sclerosus. Lichenoid drug eruption refers to a lichen planus-like rash caused by medications. Frequently it affects the skin around skin folds. Candida is the name for a group of yeasts (yeast is a type of fungus) that commonly infect the skin. When it comes to finding employment in New Zealand, having a well-crafted CV is essential. etsy dinosaur Notalgia paraesthetica is a form of cutaneous dysaesthesia where itch and/or changed sensation arise in the areas of skin on the medial aspect of the shoulder blade on either side of the back. Areas of skin covered by swimwear, such as the buttocks, are most prone to develop the rash. Behçet disease is most common in individuals originating from eastern and central Asia as well as the eastern Mediterranean. In the skin, small vessel vasculitis presents with palpable purpura. The typical clinical presentation of anetoderma is of multiple round well-defined 1-2 cm lesions with wrinkly skin overlying a palpable depression, the so-called button-hole sign. This topic provides a differential diagnosis of pustular skin conditions. When it comes to running a successful business, choosing the right warehouse in New Zealand is crucial. A keloid scar is a firm, smooth, hard growth that occurs as a result of excessive scar formation. Shiny umbilicated papules. A nonpainful papulokeratotic variant has been reported. Orofacial granulomatosis (as defined by Wiesenfeld in 1985) is the specific histology finding of granulomas in mucosal or skin biopsies taken from the mouth or face in the absence of a recognised systemic condition known to cause granulomas. In the initial phase memory CD8+ T-cells at the dermo- epidermal junction release interferon-gamma when activated by the medication antigen causing epidermal basal layer damage. The Fitzpatrick skin type (or phototype) depends on the amount of melanin pigment in the skin.
DermNet NZ is a comprehensive online resource for skin diseases, conditions, and their treatments. This may relate to the increased levels of oestrogen present in pregnancy. Chronic swelling of the lower leg, aggravated by hot weather and prolonged standing. Measles is a notifiable disease Rash Day 3. A topical antifungal medication is a cream, solution, lotion, powder, gel, spray or lacquer applied to the skin surface to treat a fungal infection. The descriptive term, benign keratosis, is. Palpable purpura is purpura than can be felt, due to inflammation of the blood vessels ( vasculitis) Eczema herpeticum is a disseminated viral infection characterised by fever and clusters of itchy blisters or punched-out erosions. exponential growth and decay worksheet word problems In adults, miliaria often affects the upper trunk, scalp, neck and flexures. Common, male predominance, increases with age. Chronic hand dermatitis is estimated to affect 10-15% of the population [1]. Rocky Mountain spotted fever (RMSF) is a tick-borne infection caused by small bacteria called Rickettsia rickettsii. Authoritative facts from DermNet New Zealand. minoxidil anxiety The appearance of the rash is delayed 8-24 hours after sun exposure and heals in about 2 weeks, faster with. Squamous cell carcinoma. Sometimes it is only noticed once a patch of hair loss is smooth and white, but. Spironolactone mainly works by blocking androgen receptors. tbt news facebook Usually found on an eyelid, behind the ear, on a cheek or jaw. Melanoma is a potentially dangerous skin cancer that arises from pigment cells ( melanocytes ). Authoritative facts from DermNet New Zealand. It is usually transmitted through direct contact. Phototherapy works by suppressing DNA synthesis, which in turn reduces inflammation. It may look like acne or other forms of folliculitis. Higher doses and/or longer courses of antiviral drugs may be used for immunocompromised patients, eczema herpeticum, or for disseminated herpes simplex.
It is characterised by a large circular or oval "herald patch", usually found on the chest, abdomen, or back. Located in areas exposed to the sun such as the face and forearms. It results from exposure to ultraviolet ( UV) radiation, which causes local proliferation of melanocytes and accumulation of melanin within the skin cells ( keratinocytes ). Otitis externa, also called external otitis or 'swimmer's ear', is a common inflammatory condition of the external auditory canal (the ear canal). In adults, miliaria often affects the upper trunk, scalp, neck and flexures. Disadvantages of topical formulations include: The applications may also be messy or uncomfortable. Paraneoplastic hypercalcaemia. Episodes can be isolated, recurrent, or persistent. Some common symptoms of contact dermatitis include: Blisters or bumps that may ooze fluid or crust over DermNet NZ is a not-for-profit website that provides evidence-based information on skin conditions, images, case studies and resources. They dimple on lateral compression (pinch or dimple sign) Dermatitis herpetiformis (DH) and coeliac disease are due to intolerance to the gliadin fraction of gluten found in wheat, rye, and barley. Juvenile spring eruption is a variant of PMLE. There are two mites principally involved in human demodex infestations, Demodex. Spironolactone mainly works by blocking androgen receptors. Blisters inside the mouth and in genital sites are uncommon. Eyelid contact dermatitis is an inflammatory reaction involving the eyelid skin that is caused by contact with a trigger substance. NZ Dermatalogical Society Inc is a not-for-profit incorporated society of more than 60 dermatologists. Induration of the scalp. Irritant contact cheilitis Perioral dermatitis due to allergic contact dermatitis or irritant contact dermatitis Contact urticaria. 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. Chloracne is a rare skin condition caused by certain toxic halogenated aromatic hydrocarbon chemicals, including the dioxins. People with white skin that cannot tan ( Fitzpatrick skin phototype 1) often have red hair and numerous ephelides. Atopic dermatitis, also called atopic eczema, the most common inflammatory skin disease worldwide, presents as generalised skin dryness, itch, and rash. upper newtownards road speed camera The affected skin may be red and tender from time to time, and. Definition. Actinic granuloma is an uncommon skin disease that presents with asymptomatic annular (ring-shaped) plaques on sun-exposed sites. SSSS is often used interchangeably with the eponymous name Ritter von Ritterschein disease (Ritter disease), particularly when it presents in newborn children. Disadvantages of topical formulations include: The applications may also be messy or uncomfortable. Vulval itch, pain and burning can co-exist. Multiple milia appear on within an inflamed plaque up to several centimetres in diameter. Authoritative facts from DermNet New Zealand. Keratosis pilaris usually starts in childhood but becomes more obvious during the teenage years and adulthood. There is an immune reaction in which antibodies damage small blood vessel walls and surrounding tissues. Textile contact dermatitis or clothing dermatitis can be defined as skin manifestations caused by wearing clothing and/or other fabrics that come into contact with skin. Can include psoriasiform plaques, vesicular, bullous, pustular or erosivelesions. Reactive arthropathy affects both men and women and is seen most commonly in young adults between the ages of 20 and 40 years [1]. Different types of bacterial folliculitis are described below. Contact allergy to preservatives, Allergic contact dermatitis to topical biocides, Allergic contact dermatitis to topical disinfectants. Spindle cell melanoma is a rare histological variant of melanoma, characterised by the presence of spindle-shaped melanocytes [1]. Conditions that can cause metastatic calcinosis cutis may include: Primary or secondary hyperparathyroidism. The Australian/New Zealand Standard: Solaria for cosmetic purposes (AS/NZS 2635:2008), is intended to “provide operators and users of artificial tanning equipment with procedures for reducing the risk associated with indoor tanning” [5]. The name urticaria is derived from the common European stinging nettle 'Urtica dioica'. Lyme disease can affect any part of the body, most commonly the skin, central nervous system, joints, heart, and rarely the eyes and liver. It, therefore, includes Melkersson-Rosenthal syndrome and Miescher cheilitis ( granulomatous cheilitis. Milia en plaque. Who gets atopic dermatitis? Acne is a common chronic disorder affecting the hair follicle and sebaceous gland, in which there is expansion and blockage of the follicle and inflammation. IMPORTANT NOTICE: DermNet does not provide a free online consultation service. Some pustules are sterile and are due to inflammatory skin disease. Affect children and adults, especially middle-aged women. thrive metropolis promo code Female pattern hair loss (FPHL) is a distinctive form of diffuse hair loss that occurs in women with androgenetic alopecia. In treatment of onchocerciasis; fever, rash, muscle or joint aches and tender glands and eye irritation/swelling or pain. Secondary skin infection of wounds, dermatitis, scabies, diabetic ulcers etc Blistering distal dactylitis. In the absence of skin or joint disease, psoriatic nail disease has been described in 5-10% of adults. Scroll through evidence-based information on dermatological diseases (skin … A to Z directory of skin diseases, conditions, and their treatments from DermNet. Enlarged lymph nodes in the neck occur in some cases. Pressure ulcers are skin and soft tissue injuries sustained from prolonged pressure. 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 skin, dermoid cysts are made up of epidermal and dermal components: keratinocytes, hair follicles and hair, and sweat glands What is Netherton syndrome? Netherton syndrome is a rare inherited disorder that presents with the three following characteristics: Ichthyosiform erythroderma - inflamed, red, scaly skin Trichorrhexis invaginata ('bamboo hair') - short, brittle, lustreless hair Atopic diathesis - predisposition to allergy problems. The NZ Dermatological Society Inc does not provide an on-line consultation service. It may be neutrophilic, lymphocytic or granulomatous on histopathology. Dry atopic dermatitis in an extensor pattern. The following is a brief overview of how the test is performed. Rare, appears in childhood. Authoritative facts from DermNet New Zealand. If you’re not enough of an exp. Pemphigus vulgaris accounts for 70% of all pemphigus cases worldwide although it is extremely rare in New Zealand (about one case per million of the population). The DermDiag Tool is designed to help you understand your skin condition. Lichen sclerosus of anogenital sites is associated with an increased risk of vulval, penile or anal cancer ( squamous cell carcinoma, SCC). SCARs are rare: Chronic superficial scaly dermatitis begins with one or more red, slightly scaly patches mainly on the limbs and trunk.