Testicular sperm extraction in patients with persistent azoospermia after chemotherapy for testicular germ cell tumor.

Sperm cryopreservation before chemotherapy in young males is recommended because of chemotherapy's gonadotoxic effects. However, many patients miss sperm banking, and consequently are often sterile. Two azoospermic patients presented to us after chemotherapy, and we obtained sperm from them by testicular sperm extraction (TESE).

Testicular volume measurement: comparison of ultrasonography, orchidometry, and water displacement.

Objectives: To determine the accuracy of orchidometry and ultrasonography for measuring the testicular volume by comparing the resultant measurements with the actual testicular volume in humans.

Methods: The testicular volume of 40 testes from 20 patients with prostate cancer (mean age +/- SD 74.5 +/- 7.