Items tagged “dermatology”

15 results found
Article

Lentigo maligna

Lentigo maligna, also known as Hutchinson freckle, is a non-familial precursor to lentigo maligna melanoma, which accounts for 5-15% of cases of malignant melanoma. It is most frequent in the head and neck. It should not be confused with numerous other Hutchinson named entities including: Hutc...
Article

Skin changes of mercury poisoning (mnemonic)

A mnemonic for the skin changes associated with mercury poisoning is: 5 Ps Mnemonic P: pink P: puffy P: painful P: paraesthesia P: peeling
Article

Lichen planus (mnemonic)

A mnemonic to describe the skin lesions associated with lichen planus is: 5 Ps Mnemonic P: planar P: polygonal P: pruritic P: purple P: papular
Article

Lichen aureus (mnemonic)

The skin changes of lichen aureus can be remembered with the following mnemonic: 5 Ps of lichen aureus Mnemonic pigmented purpuric papules in peripheral patches
Article

Café au lait spots

Café au lait spots are a type of pigmented skin lesions which are classically described as being light brown in colour.   Conditions associated with them include: neurofibromatosis type 1 (NF1) Jaffe-Campanacci syndrome McCune-Albright syndrome: typically irregular which has been likened to ...
Article

Kveim Stilzbach skin test

The Kveim Stilzbach skin test is a sensitive and specific test for sarcoidosis, requiring the intradermal injection of homogenized spleen or liver material from a patient with known sarcoidosis. In patients with sarcoidosis, a typical sarcoid granuloma will develop at the injection site within 4...
Article

Sezary syndrome

Sézary syndrome (SS) is a type of cutaneous T-cell lymphoma. It is sometimes considered an advanced and leukaemic form of cutaneous T-cell lymphoma (CTCL). Clinical presentation It is clinically characterised by an extensive erythematous rash covering most of the body as well as the presence o...
Article

Primary cutaneous melanoma

Primary cutaneous melanoma is the most common subtype of malignant melanoma, a malignant neoplasm that arises from melanocytes. Melanocytes predominantly occur in the basal layer of the epidermis but do occur elsewhere in the body. Primary cutaneous melanoma is by far the most common type of pri...
Article

Hidradenitis suppurativa

Hidradenitis suppurativa is an inflammatory skin disease of unknown cause. It has an autosomal dominant inheritance pattern, and androgen excess have been postulated. The disease is associated with Crohn disease and Dowling Degos disease.  Epidemiology Up to 4% of the general population are af...
Case

Hidradenitis suppurativa

 Diagnosis certain
Dr Jan Frank Gerstenmaier
Published 24 Aug 2013
92% complete
CTUltrasoundMRI
Case

Cutaneous melanoma

 Diagnosis almost certain
Dr Ayush Goel
Published 01 Jan 2015
77% complete
CT
Article

Granuloma annulare

Granuloma annulare is a benign idiopathic inflammatory disorder of the dermis, characterised by formation of dermal papules in young children. Clinical presentation Granuloma annulare has various clinical presentations: three cutaneous forms erythematous perforating generalised one subcut...
Article

Cutis laxa

Cutis laxa is a rare dermatological condition, characterised elastic fibre loss resulting in patients with very lax skin. Patients can also develop emphysema. Pathology Cutis laxa may be inherited (autosomal dominant, autosomal recessive, or X-linked recessive) or may occur sporadically. Asso...
Article

Focal dermal hypoplasia syndrome

Focal dermal hypoplasia syndrome is also known as Goltz syndrome, and is named confusingly similar to Gorlin-Goltz syndrome. Epidemology A rare disorder that follows X-linked dominant inheritance pattern. More commonly seen in males than female. Worldwide only 200-300 cases have been reported....
Article

Ichthyosis

Ichthyosis is a heterogeneous set of dermatologic conditions marked out by their phenotype of diffuse dryness of the skin. Ichthyosis is usually inherited, but rarely maybe acquired. Epidemiology Inherited ichthyosis (II) accounts for the majority of cases.  Ichthyosis vulgaris, the commonest ...

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