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To make authoritative information about the skin available to anyone in the world with an internet connection.

DermNet NZ was launched in 1996 by a group of Dermatologists from New Zealand. It has become a world-renowned resource of skin disease information. 

Dermatopathology topics

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Eruptive xanthoma

Eruptive xanthoma presents as crops of pink papules which are often pruritic.

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Juvenile xanthogranuloma

Juvenile xanthogranuloma usually presents in younger individuals as smooth pink or yellow nodules.

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Verrucous haemangioma

Verrucous haemangioma presents as blue-red, vascular papules, plaques or nodules, which later become warty in appearance.

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Myiasis

Myiasis is infestation by the larvae of fly species within the arthropod order Diptera (the adult flies are two-winged).

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Systemic amyloidosis

Systemic amyloidosis caused by the buildup of amyloid in various organs.

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Lichenoid drug eruption

Lichenoid drug reactions are induced by a medication or another exogenous source which can mimic other lichenoid dermatoses clinically and...

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Sclerosing lipogranuloma

Sclerosing lipogranuloma usually presents as a painless or slightly tender, indurated mass on the penis, scrotum, spermatic cord and perineum.

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Glomeruloid haemangioma

Glomeruloid haemangioma is a rare benign cutaneous vascular proliferation that typically arises in patients with a history of POEMS syndrome.

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Splenosis

Splenosis may present in the skin following splenic trauma and subsequent spread of benign splenic tissue into surrounding structures.

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Epithelioid haemangioma

Epithelioid hemangioma is a benign vascular lesion of the skin or deeper structures (bone).

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Cutaneous larva migrans

Cutaneous larva migrans is a parasitic skin infection caused by helminth larvae that usually infest cats, dogs and other animals.

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Mesothelioma

Mesothelioma is a malignant tumour arises from mesothelial lining of pleura, peritoneum, pericardium and tunica vaginalis — pleural mesothelioma is...

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Chickenpox

Chickenpox is caused by primary infection with the varicella-zoster virus, of the Herpesviridae family.

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Synovial sarcoma

Synovial sarcoma is usually an aggressive deep seated mass presenting around large joints (80% in knee and ankle) in young...

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Clear cell fibrous papule

Clear cell fibrous papule is a rare variant of fibrous papule that has a clinical presentation identical to conventional fibrous...

Childhood infections

Meningococcal petechiae
Meningococcal disease

Meningococcal disease is an illness caused by the bacteria Neisseria meningitidis.

Measles
Measles

Measles is a highly contagious viral infection causing fever and a rash. Early symptoms are like the common cold, with...

Chickenpox
Chickenpox

Chickenpox is a highly contagious viral infection that causes an acute fever and blistered rash, mainly in children.

Fifth disease
Fifth disease

Erythema infectiosum is a common childhood infection causing a slapped cheek appearance and a rash.

Herald patch: pityriasis rosea
Pityriasis rosea

Pityriasis rosea is a viral rash which lasts about 6–12 weeks. It is characterised by a herald patch followed by...

Impetigo
Impetigo

Impetigo is a common acute superficial bacterial skin infection (pyoderma).

Boil
Boil

A boil (also called a furuncle) is a deep form of bacterial folliculitis (infection of a hair follicle).

Vesicles on palm in hand foot and mouth disease
Hand foot and mouth disease

Hand foot and mouth disease (HFM) is a common mild and short-lasting viral infection most often affecting young children.

Infantile papular acrodermatitis
Papular acrodermatitis

Papular acrodermatitis of childhood is a characteristic response of the skin to viral infection in which there is a papular...

Molluscum contagiosum
Molluscum contagiosum

Molluscum contagiosum is a common viral skin infection of childhood that causes localised clusters of epidermal papules called mollusca.

Viral warts
VIral warts

A viral wart is a very common growth of the skin caused by infection with human papillomavirus (HPV).

Head louse
Head lice

Head lice are small, wingless insects that infest the human scalp.

Scabies
Scabies

Scabies is a very itchy rash caused by a parasitic mite that burrows in the skin surface.

Slider: Childhood infections

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