Clinical Quiz
The Hong Kong Practitioner VOLUME 26 / January 2004

A woman with scaly scalp lesion and hair loss
R C W Su 蘇志慰

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 January 31, 2004. 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 45 years old lady presented with two well-defined scaly erythematous plaques on her scalp for one year. There was accompanying scarring and hair loss. There were no other skin lesions or systemic symptoms. Blood pressure and urinalysis were unremarkable. Antinuclear antibodies were reported positive at 1/80. Anti-double-stranded-DNA was negative. Complement 3 and complement 4 were normal. Liver and renal functions were normal.

The slide and the question were prepared by:
Dr R C W Su, FHKAM(Med)
Medical Officer,
i/c Wan Chai (Female) Social Hygiene Clinic, Social Hygiene Service,
Department of Health.

What is the diagnosis?

A. Psoriasis
B. Discoid lupus erythematosus
C. Lichen planus
D. Tinea capitis

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