Abstract
A case of primary malignant lymphoma of the testis associated with an unusual degree of sclerosis and nodularity is reported. The patient, a 21-year-old male, is alive and well 5 years after orchidectomy followed by radiation therapy to the lumbar and para-aortic lymph nodes in spite of very extensive involvement of the testis, epdidymis and presence of tumour deposits within the spermatic cord and in para-aortic lymph nodes. It is suggested that sclerosis and nodularity may be favourable prognostic features in patients with primary malignant lymphoma of the testis.