Clinical Quiz
The Hong Kong Practitioner VOLUME 28 / September 2006

An eight-year-old boy presenting with flaccid blisters
Henry H F Ho ¦ó¼yÂ×


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 23 October, 2006. Each reader is allowed to submit one entry only. The name of the winner and the answer will be published in the October issue.

Clinical history:

An eight-year-old boy presented with three-day's history of flaccid blisters over his left upper arm and right calf. The blisters quickly ruptured and became superficial round erosions, some covered with crusting. The boy's younger sister has suffered from a similar condition a few days before and has fully recovered.
The slide and the question were prepared by:
Dr. Henry H F Ho, MRCP(UK), FHKCP, FHKAM(Med)
Senior Medical Officer,
Social Hygiene Service, Public Health Service Branch, Department of Health.

What is the diagnosis?

A. Bullous impetigo
B. Herpes Simplex
C. Chronic bullous dermatosis of childhood
D. Chickenpox

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