Solitary spindle cell xanthogranuloma mimicking a spitz nevus

A Vascular-appearing Spindle Cell Xanthogranuloma in a Child

Spindle cell xanthogranuloma is a rare variant of juvenile xanthogranuloma that most commonly presents in adults as papulonodules. We describe a vascular-appearing case of spindle cell xanthogranuloma on the nose of a 10-year-old boy. The lesion was a dark red, well-demarcated, dome-shaped papule. Histopathology revealed spindle-shaped histiocytes in a storiform pattern that stained positive for cluster of differentiation 68 (CD68) and the nuclear antigen Ki-67. No vascular features were found. To our knowledge, this is the first reported spindle cell xanthogranuloma to mimic an angiomatous lesion.