Peer Reviewed
Dermatology clinic

A young boy with a painful oral ulcer

Andrew Lee, Gayle Fischer
Abstract
Test your diagnostic skills in our regular dermatology quiz. What is the diagnosis of this large ulcer and how should it be treated?
Key Points
    Case presentation

    A 6-year-old boy presents with a large oral ulcer that developed three days ago and has been slowly enlarging (Figure 1). The lesion is shallow but very painful.

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