Since July 1981 we have achieved clinical applications of microsurgical techniques in anastomoses of various duct structures (urogenital, digestive tracts and vessels). An 11-year-old boy with bilateral undescended testes underwent microsurgical orchidopexy of the right abdominal testis and standard orchidopexy of the left intra-inguinal canal testis. The right spermatic vessels were anastomosed to the superficial inferior epigastric vessels by microsurgical techniques. The gonad was not perfused or cooled during the revascularization process. The histologic features of testicular biopsies at the time of orchidopexy were more severe atrophic changes in the intra-inguinal canal testis than in the intraabdominal testis. Because of these histologic changes, even if the patient had the unilateral intraabdominal testis, the indication of testicular autotransplantation for the intraabdominal testis should be considered.
