title: Clear cell hidradenoma simulating breast carcinoma: a diagnostic pitfall in fine-needle aspiration of breast.
abstract: Clear cell hidradenoma, a benign tumor of sweat gland, presented as a breast lump with ulceration of overlying skin in an elderly woman. Failure to identify its cytological features led to a wrong diagnosis of breast carcinoma on fine-needle aspiration of the lump. Retrospective review of cytology revealed the presence of many clear cells amidst polygonal tumor cells, but no tubular lumina were seen. Accurate diagnosis remains a problem.
authors.affiliation: Department of Pathology, All India Institute of Medical Sciences, Ansari Nagar, New Delhi, India.
authors.forename: N
authors.initials: N
authors.lastname: Kumar
authors.forename: K
authors.initials: K
authors.lastname: Verma
mesh_terms: D006607:Adenoma, Sweat Gland / Q000473:pathology*; D000368:Aged; D001707:Biopsy, Needle; D001943:Breast Neoplasms / Q000473:pathology*; D003937:Diagnosis, Differential; D003951:Diagnostic Errors; D005260:Female; D006801:Humans; D012189:Retrospective Studies; D013544:Sweat Gland Neoplasms / Q000473:pathology*