Clinical Quiz
The Hong Kong Practitioner VOLUME 26 / June 2004

An elderly lady with a pigmented nodule
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 9 July, 2004. Each reader is allowed to submit one entry only. The name of the winner and the answer will be published in the July issue.
Clinical history:

An 83 years old Chinese lady presented with a dark blue pigmented nodule over her left hip for three years. The nodule slowly but progressively enlarged to reach a size of 1cm in diameter. It had a smooth shiny surface, and a well-defined edge.

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. Pigmented basal cell carcinoma
B. Superficial spreading melanoma
C. Melanocytic naevus
D. Seborrhoeic keratosis

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