title: A baffling basaloid blain.
abstract: Cutaneous metastases may present in a variety of histologic guises simulating more common primary tumors. We present the clinicopathologic features of a case masquerading as basal cell carcinoma. Epidermotropism, vascular invasion, and the absence of stromal retraction around tumor nests prompted further investigation. Clinical history and directed immunohistochemical staining ultimately revealed the diagnosis of cutaneous metastasis of transitional cell bladder carcinoma (TCC).
authors.affiliation: Department of Internal Medicine, University of South Florida, Tampa, FL 33612, USA.
authors.forename: Andrew H
authors.initials: AH
authors.lastname: Kalajian
authors.forename: Gino F
authors.initials: GF
authors.lastname: Piparo
authors.forename: Leigh Ann
authors.initials: LA
authors.lastname: Scalf
authors.forename: Jeffrey A
authors.initials: JA
authors.lastname: Kooper
authors.forename: Michael B
authors.initials: MB
authors.lastname: Morgan
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D002280:Basal Cell Carcinoma / Q000473:pathology; D002295:Carcinoma, Transitional Cell / Q000378:metabolism / Q000556:secondary*; D002481:Cellulitis / Q000209:etiology; D003937:Diagnosis, Differential; D006801:Humans; D007150:Immunohistochemistry; D008297:Male; D012878:Skin Neoplasms / Q000150:complications / Q000378:metabolism / Q000556:secondary*; D001749:Urinary Bladder Neoplasms / Q000473:pathology*