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.
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| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC10801575 | PMC |
| http://dx.doi.org/10.3390/dermatopathology11010002 | DOI Listing |
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