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Course: Numerous Ulcerated Plaques of the Trunk and Extremities in a Patient Receiving Long-term Hydroxyurea Therapy

CME Credits: 1.00

Released: 2023-02-22

A woman in her 80s initially presented with numerous, primarily photodistributed, crusted, and ulcerated plaques of the trunk and extremities. She had a medical history of essential thrombocytosis (ET), which was treated with hydroxyurea for 14 years, with a total cumulative dose of approximately 2500 g. She was otherwise reasonably well and denied any other constitutional symptoms. The ulcerations had slowly increased in number and size over several years and were quite painful (, A-C). She did have a medical history of nonmelanoma skin cancer (NMSCa), which had previously been treated surgically. Several tangential shave biopsies were performed to help clarify the patient’s diagnosis.


Educational Objective
Based on this clinical scenario and the accompanying image, understand how to arrive at a correct diagnosis.


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