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Perforating Fibrous Histiocytoma Mimicking Keratoacanthoma: A Case Report
Alina Lungu1, Aurélie Hsieh2, Gürkan Kaya1,2
1Department of Clinical Pathology, Geneva University Hospitals (HUG), 1205 Geneva, Switzerland.
Dermatopathology (Basel, Switzerland)
|January 22, 2024
Abstract:
A 31-year-old male presented with a firm, well-demarcated, erythematous, crateriform, and ulcerated nodule in the left lumbar region, which persisted for 3 months. Clinically, a keratoacanthoma was suspected. The histological analysis was consistent with perforating fibrous histiocytoma, a rare histopathologic variant of fibrous histiocytoma. To our knowledge, this is the third case reported in the literature.
