Imaging of the scrotum.

Ultrasonography is currently the imaging modality of choice when assessing scrotal lesions. Ultrasound findings are sometimes inconclusive, in which case magnetic resonance (MR) imaging might yield additional important information. This article reviews ultrasound and MR imaging features of various intratesticular and extratesticular lesions including acute and nonacute conditions of the scrotum. Nonneoplastic lesions that can mimic scrotal malignancy are discussed. Normal anatomy and imaging techniques are also presented.