Primary lymphoma of the bladder: a clinicopathological study of 3 cases.

Primary involvement of the bladder by lymphoma is rare but is associated with a favourable prognosis if diagnosed early and treated appropriately. The clinicopathological features of 3 cases of primary, non-Hodgkin's lymphoma of the bladder are described. This small study suggests a better prognosis with a favourable histological grade and an uncomplicated lymphoma confined to the bladder. We emphasise the value of aggressive treatment of the tumour.