Ultrasonographic patterns of testicular non-Hodgkin's lymphoma: a report of five cases.

We report five cases of non-Hodgkin's testicular lymphoma. All have the same ultrasonographic findings: well-defined areas of low degree of echogenicity within the testis. Ultrasonography could be a good means of routine study for a scrotal mass before orchiectomy and for a follow-up of contralateral testis after orchiectomy.