Persistence of müllerian duct derivative syndrome in 2 male patients with bilateral cryptorchidism.

The persistent müllerian duct syndrome represents a rare form of male pseudohermaphroditism secondary to anti-müllerian hormone deficiency. We describe 2 cases of phenotypically male postpubertal patients with a uterus and tubes. Both patients presented with bilateral cryptorchidism, 1 was seen for gynecomastia and 1 was seen for an abdominal mass that was found to be a testicular tumor.