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Abstract
Andrological and endocrinological parameters and cell-mediated immunity (CMI) were assessed in 25 postpubertal males who had undergone repair of unilateral or bilateral cryptorchidism in childhood or early adolescence. Among 20 patients with unilateral cryptorchidism, approximately 30% had decreased sperm density, whereas among 5 bilaterally affected, 1 was azoospermic and 2 oligozoosper-mic. In most patients the motility and viability values were normal, although the percentage of morphologically pathological sperm was higher than normal. Levels of testosterone, dihydrotestosterone, LH, and prolactin were within normal ranges in all the patients. Levels of FSH were slightly elevated. These findings may suggest a better fertility prognosis of postcryptorchid oligozoospermic patients than in patients with oligozoospermia of other etiology. CMI toward autologous semen revealed a positive reaction in 80% of the bilateral group and in 45% of the unilateral group. This response might be due to the damage of seminiferous tubules of undescended testis causing unmasking and exposure of antigenic determinants.