A baffling basaloid blain.
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).
Kalajian
Andrew H
AH
Department of Internal Medicine, University of South Florida, Tampa, FL 33612, USA.
Piparo
Gino F
GF
Scalf
Leigh Ann
LA
Kooper
Jeffrey A
JA
Morgan
Michael B
MB
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*