Prenatal sonographic detection of congenital perineal lipoma in a newborn girl.

Kim, Soo Rim; Kwon, Ja Young; Lee, Eun Joo; Park, Su Yeon; Hur, Hye won; Kim, Young Han; Park, Yong Won

Case Report

Korean Journal of Obstetrics & Gynecology 2009;52(8):863-866.
Published online August 1, 2009.

Prenatal sonographic detection of congenital perineal lipoma in a newborn girl.

Soo Rim Kim, Ja Young Kwon, Eun Joo Lee, Su Yeon Park, Hye won Hur, Young Han Kim, Yong Won Park

Department of Obstetrics and Gynecology, College of Medicine, Yonsei University, Seoul, Korea. ywparkob@yuhs.ac

Abstract

We report on a newborn girl presenting with a 2.0x1.5 cm sized pinkish, doughy lump arising between right labia majora and anus. We performed antenatal sonogram at 33 and 36th weeks gestation. A polypoid mass of 0.8x1.0 cm sized in size was noted on ultrasonography. After birth, we observed a skin-covered protruding mass not to detect other anatomic anomalies-spinal anomalies, anorectal malformations, etc. After 3 months, excision of the perineal mass was done at the Department of Pediatric Surgery of our hospital. Mature fat cells were noted on histopathological exam. To our knowledge, there are few studies in the English literatures about congenital perineal lipoma without combined structural anomalies.

Key Words: Lipoma, Perineum, Ultrasonography