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Course: Nonhealing Cutaneous Ulcers in a Patient With Myelodysplastic Syndrome

CME Credits: 1.00

Released: 2023-04-13

A 75-year-old man with myelodysplastic syndrome (MDS) with isolated deletion 5q (del5q) presented with multiple nonhealing skin ulcers on the chest and upper extremities. Four years earlier, he started taking lenalidomide, 10 mg/d (28-day cycle), to treat worsening anemia; after 2 cycles of treatment, he became transfusion independent. Since then, he has remained stable with the same dose and schedule of lenalidomide without significant adverse effects. The presenting skin lesions developed 1 month before presentation and began as small pustules that rapidly transformed into painful ulcers. He was treated with valacyclovir for a presumed diagnosis of shingles, but the lesions did not improve. Because of suspected necrotizing fasciitis, he underwent incision and drainage of the lesions. Cultures from the surgical specimen grew methicillin-resistant Staphylococcus hemolyticus. However, the lesions continued to worsen despite vancomycin and additional debridement. Thus, he was transferred to our facility.


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


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