A quiz case reveals an unexpected diagnosis of a non-healing ulcerated plaque in an elderly man, suggesting the need for thorough evaluation.
An 81-year-old man presented with a four-week non-healing plaque on the right lower leg following minor trauma. Despite wound care and systemic antibiotics, the lesion persisted and progressed. Histopathological evaluation of a punch biopsy led to a rare and unexpected diagnosis.
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Cafasso et al. (2026) studied this question.
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