Magnetic resonance imaging in genital anomalies.

Magnetic resonance imaging, a new radiographic modality that is not dependent on ionizing radiation or intravenous contrast agents, was used to identify undescended testes in 11 patients. Of 14 undescended testes 13 were identified and the only testis that was not seen was in a patient with surgically proved unilateral anorchism. We also used magnetic resonance imaging in 9 patients with various types of intersex. The anatomy of the corpora cavernosa, vagina, uterus and gonads was well seen in each instance.