title: Malignant eccrine spiradenoma of the external ear.
abstract: Eccrine spiradenoma is a benign tumor of sweat gland origin. Malignant eccrine spiradenoma is a rare neoplasm which almost always arises from a pre-existing spiradenoma lesion. In this article, we present a patient with malignant eccrine spiradenoma of the auricula with a prior diagnosis as benign eccrine spiradenoma. Although malignant transformation is usually associated with aggressive behavior, we did not detect recurrence or metastasis in four years of follow-up after performing wide excision.
authors.affiliation: Department of Otolaryngology, Medical Faculty of Abant İzzet Baysal University, 14280 Gölköy, Bolu, Turkey.
authors.forename: Yusuf Özgür
authors.initials: YÖ
authors.lastname: Biçer
authors.forename: Serap
authors.initials: S
authors.lastname: Köybaşı
authors.forename: Erkan
authors.initials: E
authors.lastname: Tezcan
authors.forename: Fahri
authors.initials: F
authors.lastname: Yılmaz
mesh_terms: D006607:Adenoma, Sweat Gland / Q000175:diagnosis*; D000368:Aged; D001706:Biopsy; D004428:Ear Neoplasms / Q000175:diagnosis*; D004431:Ear, External; D006801:Humans; D008297:Male; D013544:Sweat Gland Neoplasms / Q000175:diagnosis*; D014057:Tomography, X-Ray Computed