PubMed · 13028316
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G KORKUD. [Epididymography].. https://pubmed.ncbi.nlm.nih.gov/13028316/
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We report a very rare case of tumor in the head of left epididymis without localized primary foci of tumor in the testis.
BACKGROUND: There are few studies in the literature performed in human fetuses evaluating the incidence of genitourinary anomalies. AIMS: Analyze the incidence of congenital urogenital malformations in human male fetuses. STUDY DESIGNS AND SUBJECTS: We analyzed 166 human male fetuses well preserved. The gestational age was determined in weeks post conception (WPC) according to the foot length criterion and ranged from 10 to 35 WPC. The fetuses were dissected with the aid of a stereoscopic lens with 2.5x magnification. We performed abdominal and pelvic incisions to expose the urogenital organs. We studied the incidence of renal, ureteral, vesicle, urethral, testicular, epididymal, vas deferens, prostate and penile anomalies. RESULTS: Of the 166 fetuses, 7 (4.2%) presented some kind of anomaly of the urogenital system. Renal anomalies were found in two fetuses (1.2%). Unilateral renal agenesis was found in a 25 WPC fetus. Horseshoe kidney was found in a 20 WPC fetus. In a 23 WPC fetus (0.6%) the two testes were absent. Epididymal disjunction anomalies were found in four fetuses (2.4%). CONCLUSIONS: The urogenital anomalies in human male fetuses are rare and have an incidence around 4%.
PURPOSE: To investigate sperm quality aspirated from the tubuli recti compared to that obtained from microsurgical epididymal sperm aspiration (MESA). METHODS: Sixteen patients with congenital bilateral absence of the vas deferens (CBAVD) underwent MESA. Six MESA procedures were difficult, and therefore sperm were retrieved from the tubuli recti ductules. Intraoperative sperm parameters, recovery after freeze-thaw, and ICSI outcomes were analyzed and compared between tubuli recti and MESA sperm. RESULTS: Mean initial sperm concentration was similar in both groups (18 vs. 16 million sperm/mL). Initial sperm motility was significantly higher in the tubuli recti group (35%) than the MESA group (25%). However, post thaw motility was higher with MESA compared to tubuli recti sperm (8.7 vs. 1.5%). ICSI fertilization rates after sperm freeze-thaw were 66% for tubuli recti sperm and 71% for MESA sperm. CONCLUSIONS: Tubuli recti sperm may provide an attractive alternative to testis sperm extraction. Poor sperm recovery after freeze-thaw should be expected.