MALT-Type Primary Lymphoma of the Urinary Bladder: Clinicopathological Study of 2 Cases and Review of the Literature

Abstract

Primary lymphoma of the bladder is a rare non-epithelial bladder tumour. It is usually non-Hodgkin’s lymphoma with mucosa-associated lymphoid tissue (MALT) lymphoma being its predominant subtype. Most of the literature has been limited to individual sporadic case reports. We present 2 cases of the MALT-type primary lymphoma of the urinary bladder which were treated in our unit. Both patients were females with a history of recurrent urinary tract infections. They were treated successfully with chemotherapy alone. We also present a review of the literature emphasising the clinical presentation, the morphological and immunophenotypic features and the various treatment modalities of this rarely seen bladder pathology.