A gentleman known to have psoriasis complained of “sweat rash” involving his groin.

King-man Ho

Readers are invited to participate in the Clinical Quiz. A prize draw, sponsored by Pfizer Corporation Hong Kong Limited, will be undertaken among the successful entries. For entry into the draw, simply answer the question, fill in the reply slip and return it to the College by 22 February 2014. Each reader is allowed to submit one entry only. The name of the winner and the answer will be published in the March 2014 issue.

Clinical history:

Answer:
A. Psoriasis

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The slide and the question were prepared by:
Dr King-man Ho, FRCP (Glasg, Edin), MRCP (UK), FHKCP, FHKAM (Medicine)
Consultant Dermatologist-in-Charge,
Social Hygiene Service, PHSB, CHP, DH