Primary Bladder Non-Hodgkin Lymphoma: A Case Report.

Primary bladder lymphoma, a rare form of non-Hodgkin's lymphoma, is diagnosed through histopathology and immunostaining. Most bladder lymphomas are of the B-cell type, with a higher incidence in women and often presenting with hematuria. This report details an exceptionally rare case of primary bladder T-cell lymphoma. A 50-year-old male, without hematuria or other symptoms, was diagnosed during a routine ultrasound. A computed tomography scan showed a tumor located in the anterior, right, and posterior walls. The patient underwent transurethral resection of the bladder lesion. Pathological examination of the tumor showed that it was composed of lymphoid tissue, in accordance with peripheral T-cell lymphoma of non-Hodgkin subtype.