Scintigraphy of the testes: a new method in the diagnosis of undescended testes.

A new method of scintigraphy of the testes using 99mTc--Na-pertechnetate is described. Eleven men without clinical features of testicular disease and 38 patients with cryptorchidism were examined. The results of the radionuclide investigations were confirmed surgically. Scintigraphy of the testes provides an opportunity to work out the indications for the particular type of the operation and management of the patients with cryptorchidism.