title: Use of immunohistochemistry for identification of primary lymphoma of the bladder.
abstract: Primary lymphoma of the bladder is a rare entity, and when found in such an unusual location it frequently is difficult to distinguish between a lymphoma and an undifferentiated carcinoma. Immunohistochemical staining techniques have been used to identify tumor cell origins when the tissue type or a primary site of involvement is unknown. We report a case of primary lymphoma (nonHodgkin's type) of the bladder and the use of immunohistochemical staining to distinguish definitively tissue type and then specific immunotype.
mesh_terms: D000368:Aged; D001402:B-Lymphocytes / Q000276:immunology; D006801:Humans; D015451:Leukemia, Lymphocytic, Chronic, B-Cell / Q000276:immunology*; D008297:Male; D013194:Staining and Labeling; D001749:Urinary Bladder Neoplasms / Q000276:immunology*