Lymphomas of the urinary tract, the male genital system, and the adrenal glands

Specific lymphomatous infiltration of an organ must always be distinguished from the urological consequences of extraurinary lesions such as adenopathies. Non-Hodgkin's lymphomas (NHL) of the urinary tract are more frequent than Hodgkin's disease (HD). Weimar reported a 6.7% overall incidence of urogenital lesions in his review, cited lesions in 5.8% of patients with HD and in 7.3% of patients with NHL. The kidney was the most common urogenital site of lymphoma in Weimar's study (68% of cases), and renal involvement is the cause of 2.5% of deaths from lymphoma. Routine investigative procedures for renal lymphomas include excretory urography, angiography, ultrasonography, and CT. Ultrasound is thus indicated for the exploration of enlarged testes, since a hypoechoic intratesticular mass is suggestive of lymphoma in patients over 50 years of age, and for the surveillance of the remaining testis after unilateral castration. Both CT and ultrasonography are indicated for the work-up of testicular lymphomas, since these lesions are generally only the initial extranodal site of a generalized lymphoma