Massive renal angiomyolipoma in tuberous sclerosis.

A massive renal angiomyolipoma, measuring 45 x 20 x 15 cm and weighing 3,500 g in a patient with tuberous sclerosis is presented. While renal angiomyolipomas may become quite large, this is one of the largest such tumors ever reported.

Leydig cell tumor of the testis in Klinefelter syndrome: MR detection.

Klinefelter syndrome is associated with the development of breast and extragonadal germ cell tumors in some patients. Leydig cell tumor in association with Klinefelter syndrome is a rare entity. We report such a case to illustrate the usefulness of MR imaging in detecting a testicular neoplasm when clinical examination and ultrasonography are equivocal.