Mutilating syringoacanthoma.
Syringoacanthoma is a rare tumor derived from the eccrine acrosyringium; very few cases have been reported. The nosology of this tumor remains controversial. We present a new case of syringocanthoma occurring in a 43-year-old woman; the lesion lasted for more than 30 years and caused partial destruction of the earlobe. Histopathologic examination showed a hyperkeratotic intraepidermal tumor, with many large cavities lined by an eosinophilic cuticle and filled with a PAS-positive substance. This case is probably a mutilating variant of syringoacanthoma, despite benign histopathologic features.
Cribier
B
B
Clinique Dermatologique des Hôpitaux Universitaires, Université Louis Pasteur, Strasbourg, France.
Halna
J M
JM
Grosshans
E
E
D000328:Adult; D004431:Ear, External; D004439:Eccrine Glands / Q000473:pathology; D005260:Female; D006801:Humans; D009375:Neoplasms, Glandular and Epithelial / Q000473:pathology*; D013544:Sweat Gland Neoplasms / Q000473:pathology*