High-resolution ultrasound in the evaluation of the nonacute testis.

Ultrasound is the initial imaging modality used in the evaluation of the symptomatic testis. Ultrasound is painless and quick and supplements clinical examination of the testis. In this review, a range of testicular pathologies are discussed and sonographic examples illustrated. Particular attention is drawn to testicular microlithiasis and its relation to germ cell neoplasia and also to the sonographic features of epidermoid cysts that may allow testis-sparing surgery.