Prostate primary intravascular large B-cell lymphoma: A case report.

Intravascular large B-cell lymphoma (IVLBCL) is a distinct subtype of extranodal diffuse large B-cell lymphoma (DLBCL) and mainly affects elderly population characterized by selective infiltration of neoplastic cells within the lumina of small vessels. Prostate primary IVLBCL is extremely rare. Herein we present a case of a 76-year-old male patient who was admitted with symptoms of severe lower urinary tract obstruction. IVLBCL was diagnosed based on histopathological and immunohistochemical examination of the precious tissue specimens though transurethral prostate resection. Awareness and accurate diagnosis are very important to guide the clinicals in formulation of diagnosis and treatment plan.