Abstract
Purpose We compared testicular biopsies from retractile and cryptorchid testes to determine the histological effect of testicular retraction and the necessity of treatment for retractile testes. Materials and Methods A total of 61 testicular biopsies were performed during orchiopexy in 36 boys 1.3 to 9.8 years old (mean age 5.4) with retractile testes (unilateral in 11, bilateral in 50) and 115 testicular biopsies were done in 83 patients with cryptorchidism (unilateral in 51, bilateral in 64) 0.5 to 14.9 years old (mean age 3.7). Parameters for germ and Sertoli cells were determined in each group. Results Mean average spermatogonial number (S/T value) and Sertoli cell index were statistically different between retractile and cryptorchid testes with values of 2.96 +/− 1.33 versus 0.61 +/− 0.87 and 26.81 +/− 6.75 versus 23.04 +/− 5.85, respectively. Average tubular degeneration phase V to VII ratio was 0.23 +/− 0.18 for retractile testes and 0.22 +/− 0.17 for cryptorchid testes which was not statistically different. Conclusions Similar tubular degeneration phase V to VII values between retractile and cryptorchid testes indicate histological change in retractile testes and suggest the need for hormonal or surgical therapy for those patients with retractile testes lacking spontaneous descent.
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