title: Congenital prepubic sinus: a variant of dorsal urethral duplication (Stephens type 3).
abstract: Abstract A 3-year-old boy was admitted for yellowish discharge from a tiny opening in the midline prepubic area on the dorsal base of the penis. No other symptom related to the genitourinary tract was noted. Sinuousgraphy showed a non-communicating sinus tract with the urinary tract. At surgical exploration, through a diamond-shaped incision, a 4.5 cm-long sinus was found that ended blindly as a fibrous cord at the anterior surface of the pubic symphisis. Histologically, it was lined by stratified squamous epithelium and surrounded by bundles of smooth muscle and collagen. According to Stephens' classification, the sinus appears to be a variant of dorsal urethral duplication of Stephens type 3.
authors.affiliation: Department of Nephro-urology, Nagoya City University, Graduate, School of Medical Sciences, Nagoya, Japan.
authors.forename: Masayuki
authors.initials: M
authors.lastname: Usami
authors.forename: Yutaro
authors.initials: Y
authors.lastname: Hayashi
authors.forename: Yoshiyuki
authors.initials: Y
authors.lastname: Kojima
authors.forename: Tetsuji
authors.initials: T
authors.lastname: Maruyama
authors.forename: Keiichi
authors.initials: K
authors.lastname: Tozawa
authors.forename: Kenjiro
authors.initials: K
authors.lastname: Kohri
mesh_terms: D002675:Child, Preschool; D017577:Cutaneous Fistula / Q000151:congenital / Q000601:surgery; D006801:Humans; D008297:Male; D014521:Urethra / Q000002:abnormalities* / Q000601:surgery