Diagnostice Value In Congential Absence Of The VAS Deferens

ObjectiveCAVD is an important reason of azoospermant. The epididymises and seminal vesicales can also be found dusplastic at the same time.In the past,the diagnose of CAVD depended on contract exam.But this method is seldom applied to clinic due to its shortcomings just like the invations and the complications.At present,the diagnose of CAVD mainly depend on palpation and laboratory tests of semen.The defining characteristicses of Imageology are scarce.The aim of this study was to discuss the relationship between US and CAVD.Method5 excised and intravital specimens of infrainguinal deferens were detected with a 13Mhz probe.Compare their sonographic appearance, internal diameter and external diameter.100 infrainguinal deferens of 50 normal persons were detected with a 13Mhz probe.Measuer their internal diameter and external diameter.Analyze 50 cases of the ultrasonographic features for testises,epididymises,deferens and semial vesiculars of patients who suffer from clinically probable congenital Absence of the VAS Deferens.ResultsInfrainguinal deferens can be clearly identified with ultrasonography and their sonographic appearance has specificness.The internal diameter of Infrainguinal deferens is about 0.2～0.4mm and the external diameter is about 2.15+0.43cm.In these 50 cases,bilateral infrainguinal deferens of 48 cases can not be detected. Among them bilateral bodies and epididymal bodies and tails are found displastic in 45 cases. At the same time bilateral seminal vesiculars are absent in 46 cases and in 2 cases bilateral seminal vesiculars are found displastic. Unilateral infrainguinal deferen can not be detected in 2 of the 50 cases.At the same time the ipsilateral epididymal body and tail are found displastic and the insilateral seminal vesicular is absent. The imigesof the testises appear to be normal in all 50 cases.ConclutionsInfrainguinal deferens can be exactly detected by ultrasonography. Ultrasonography should be chosen as a active method for disease of the vas deferens.Ultrasonography has important adjuvant diagnostic value for the clinical diagnosis for Congenital Absence of the VAS Deferens.