Our mission
To make authoritative information about the skin available to anyone in the world with an internet connection.
DermNet NZ was founded 22 years ago by a group of Dermatologists from New Zealand. It has become a world-renowned resource of skin disease information.
Recently added pages
Melanoma in situ
Melanoma in situ is an early form of primary melanoma in which the malignant cells are confined to the tissue of origin,...
31 May
Atypical solar lentigo
An atypical solar lentigo is a solar lentigo with unusual characteristics.
22 April
Atopy patch test
The classical tests for immediate type I hypersensitivity (allergy) are specific immunoglobulin E (IgE) antibody levels, such as the radioallergosorbent test...
5 June
Listeriosis
Listeriosis is a bacterial infection caused by the bacteria Listeria monocytogenes.
24 March
Prader-Willi syndrome
Prader-Willi syndrome is the commonest genetic cause of obesity. It was first described in 1887 by Langdon-Down, 70 years before...
25 January
Guselkumab
Guselkumab is a biologic treatment indicated for moderate to severe psoriasis.The U.S.
8 January
Rickettsia typhi
Rickettsiae are small, obligate intracellular, Gram negative bacteria that spend part of their life cycle in an arthropod host (tick,...
31 December
Climate change and skin
Climate change is a lasting alteration in patterns of weather caused by factors such as oceanic circulation, variations in solar...
16 January
Pemphigoid nodularis
Pemphigoid nodularis is a rare nodular variant of bullous pemphigoid.
5 November
Smoking — effect on the skin
Smoking and the skin
Skin and hair are exposed to various environmental noxious agents, including tobacco smoke.
31 May
Squamous cell carcinoma
Cutaneous squamous cell carcinoma (SCC) is a common type of keratinocytic or non-melanoma skin cancer.
16 January
Hairy tongue
Hairy tongue is an unusual, harmless condition characterised by a "hairy" enlargement and discolouration of the filiform papillae.
14 January
Wrinkles
Ageing skin droops and develops wrinkles, lines and furrows.
23 July
Leg ulcers
A leg ulcer is a full thickness skin loss on the leg or foot due to any cause.
26 November
Wound infection
A wound infection is defined by the US Centre for Disease Control and Prevention (CDC) as surgical site infection...
1 January
Oral cancer
There are several types of oral cancers, but over 90% are squamous cell carcinomas.
10 February
Palmoplantar pustulosis
Palmoplantar pustulosis is a chronic pustular condition affecting the palms and soles.
17 April
Hidradenitis suppurativa
Hidradenitis suppurativa is an inflammatory skin disease that affects apocrine gland-bearing skin in the axillae, in the groin, and under...
27 February
Psoriasis
Plaque psoriasis is the most common presentation of psoriasis.
4 February
Raynaud phenomenon
Raynaud phenomenon is an episodic reduction in the blood supply to the fingers and/or toes occurring mainly in response to...
12 December
Thromboangiitis obliterans
Thromboangiitis obliterans is a smoking-related condition that results in blood clot formation (thrombosis) in small and medium sized arteries, and...
31 May
Discoid lupus erythematosus
Lupus erythematosus (LE) is a group of diverse persistent autoimmune inflammatory diseases and often affects the skin.
2 June
Nicotine stomatitis
Nicotine stomatitis, also often called smoker's palate, is a reaction seen on the roof of the mouth caused by extreme...
31 May
Elastosis
Elastosis refers to degenerative changes in the dermal tissue with increased deposition of elastin material.Elastosis is a prominent feature of...
17 April
Diabetic foot ulcer
Diabetic foot ulcers are sores on the feet that occur in 15% of diabetic patients some time during their...
26 November
Calciphylaxis
Calciphylaxis is a condition characterised by necrosis (cellular death) of the skin and fatty tissue.
22 March
Guidelines for authors
Are you interested in writing for us? DermNet New Zealand is always looking for potential authors to write on new topics. Potential authors interested in writing a new page are generally asked to write a topic page on either a disease or condition, or a treatment, product or procedure.
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