Clinical Quiz
The Hong Kong Practitioner VOLUME 28 / January 2006

A man presenting with a very itchy eruption over his upper limbs
Kuen-Kong Lo ¿c°®­è


A monthly clinical quiz is published in The Hong Kong Practitioner. Readers are invited to participate and a prize draw, sponsored by Pfizer Corporation Hong Kong Limited, will be undertaken among the successful entries each month. For entry into the draw, simply answer the question, fill in the reply slip and return it to the College by 15 February, 2006. Each reader is allowed to submit one entry only. The name of the winner and the answer will be published in the February issue.

Clinical history:

A 44-year old driver complained of itchy eruption affecting his upper limbs for past 12 months. He enjoyed good past health and had taken no chronic medication or herbal remedies. The rash was itchy but did not affect his sleep. No family member was affected. He could not recall any special cause accounting for the itchy eruptions including insect bites or contact with chemicals. Blood tests screening for autoimmune diseases were all negative.
The slide and the question were prepared by:
Dr Kuen-Kong Lo,
FRCP (Edin, Glas), FHKCP, FHKAM(Med)
Consultant Dermatologist-in-Charge,
Social Hygiene Service, PHSB, CHP, DH.

What is the most likely diagnosis?

A. Subacute lupus erythematosus
B. Subacute papular eczema
C. Lichen planus
D. Scabies

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