title: Prevalence of the vanishing testis in boys with a unilateral impalpable testis: is the side of presentation significant?
abstract: A total of 208 boys with a unilateral impalpable testis and a contralateral descended testis was studied to correlate the probability of finding blind-ending vas and vessels (vanishing testis) with the side of presentation of the impalpable testis. Of 142 boys with a left impalpable testis 93 (65%) had a vanishing testis and of 66 boys with a right impalpable testis 38 (58%) had a vanishing testis (p < 0.28). These data indicate that impalpable and vanishing testes are more likely to occur on the left side in boys with a unilateral impalpable testis but the likelihood of having a vanishing testis is similar regardless of the side of presentation.
authors.affiliation: Division of Urology, University of Massachusetts Medical Center, Worcester.
authors.forename: D A
authors.initials: DA
authors.lastname: Diamond
authors.forename: A A
authors.initials: AA
authors.lastname: Caldamone
authors.forename: J S
authors.initials: JS
authors.lastname: Elder
mesh_terms: D000293:Adolescent; D000328:Adult; D002648:Child; D002675:Child, Preschool; D003456:Cryptorchidism / Q000453:epidemiology / Q000473:pathology*; D006801:Humans; D007223:Infant; D008297:Male; D015995:Prevalence; D013737:Testis / Q000473:pathology*; D014649:Vas Deferens / Q000473:pathology