Urothelial carcinoma with plasmacytoid variants producing both human chorionic gonadotropin and carbohydrate antigen 19-9 - 16/08/11
, Mitsutoshi Nakamura, Eiwa Ishida, Noboru Konishi
Address for correspondence: Keiji Shimada, M.D., Department of Pathology, Nara Medical University School of Medicine, 840 Shijo-cho, Kahihara, Nara 634-8521, JapanAbstract |
Plasmacytoid urothelial carcinoma is a rare malignant neoplasm in the urinary bladder. A 46-year-old man presented with gross hematuria and increased serum concentrations of both carbohydrate antigen (CA) 19-9 and beta-human chorionic gonadotropin (β-hCG). The tumor was composed of conventional urothelial carcinoma and plasmacytoid variant, both positive for epithelial markers. In addition, plasmacytoid tumor cells were positive for an accepted marker of plasma cell origin, CD138. CA19-9 was mainly expressed in conventional urothelial carcinoma cells, and β-hCG was mainly produced by plasmacytoid tumor cells. This is the first report, to our knowledge, indicating β-hCG can be produced by plasmacytoid bladder cancer cells lacking trophoblastic features.
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Vol 68 - N° 4
P. 891.e7-891.e10 - octobre 2006 Regresar al número
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