title: Congenital Prepubic Sinus with Remnant Tissue Mimics Corpus Spongiosum: A Rare Case.
abstract: A congenital prepubic sinus is a tract that originates in the skin and overlays the base of the penis; however, its embryologic basis is still debated. We herein present a case involving a 3-year-old boy who was admitted for examination of overlying tissue located a few centimeters distal to the dorsal base of the penis. Examination revealed a tiny sinus in the prepubic area, and 3 cm of tissue was attached to the sinus. Pathologic examination showed that the tissue was lined with squamous epithelium and continued along the sinus tract, which was lined with urothelial epithelium. According to Stephens' classification, the sinus appeared to be a variant of type 2 dorsal urethral duplication, and the remnant tissue mimicked the corpus spongiosum of the penis.
authors.affiliation: Division of Pediatric Surgery, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey.
authors.forename: Suleyman
authors.initials: S
authors.lastname: Celebi
authors.affiliation: Division of Pediatric Surgery, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey.
authors.forename: Özgür
authors.initials: Ö
authors.lastname: Kuzdan
authors.affiliation: Division of Pediatric Surgery, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey.
authors.forename: Serdar
authors.initials: S
authors.lastname: Sander
authors.affiliation: Division of Pathology, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey.
authors.forename: Nermin
authors.initials: N
authors.lastname: Gündüz
authors.affiliation: Division of Pediatric Surgery, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey.
authors.forename: Seyithan
authors.initials: S
authors.lastname: Özaydın
authors.affiliation: Division of Pediatric Nephrology, Kanuni Sultan Suleyman Training and Research Hospital, Istanbul, Turkey.
authors.forename: Sevgi
authors.initials: S
authors.lastname: Yavuz
keywords: congenital prepubic sinus; corpus spongiosum; dorsal urethral duplication