A Wandering Abdominal Mass in a Neonate: An Enteric Duplication Cyst Mimicking an Ovarian Cyst.

Shigeo Iijima

doi:10.1155/2017/9209126

Abstract

Enteric duplication cysts are rare congenital anomalies that are prenatally diagnosed through antenatal ultrasonography (US). In female patients, however, attention must be paid since these formations might be confused with ovarian cysts. Herein, we present a case of a low birth weight female infant with an enteric duplication cyst. A cystic lesion was detected in the right abdomen of the fetus on antenatal US and magnetic resonance imaging (MRI). Serial US and MRI examinations performed after birth showed a single cyst that wandered from side to side in the abdomen; the initial diagnosis was thought to be an ovarian cyst. During laparotomy, however, it was found to be an enteric duplication cyst with volvulus. To our knowledge, there has been no report of an enteric duplication cyst presenting as a wandering abdominal mass. Our experience indicates that early intervention is necessary for patients who have a wandering abdominal mass to avoid complications and urgent surgery, whether it is an ovarian cyst or an enteric duplication cyst.

Highlights

Enteric duplication cysts are rare congenital anomalies arising anywhere along the alimentary tract with a prevalence of 1/4500 autopsies [1]
Variation in the ultrasonographic features of gastrointestinal duplications has been described; most lesions are observed as a cystic mass with internal debris, septations, and a peristaltic and double-layered wall appearance that is compatible with the gastrointestinal tract wall [6]
It was difficult to differentiate the abdominal cyst from an ovarian cyst, but postnatal US revealed characteristic findings of enteric duplication cysts

Summary

A Wandering Abdominal Mass in a Neonate

Enteric duplication cysts are rare congenital anomalies that are prenatally diagnosed through antenatal ultrasonography (US). Attention must be paid since these formations might be confused with ovarian cysts. We present a case of a low birth weight female infant with an enteric duplication cyst. Serial US and MRI examinations performed after birth showed a single cyst that wandered from side to side in the abdomen; the initial diagnosis was thought to be an ovarian cyst. There has been no report of an enteric duplication cyst presenting as a wandering abdominal mass. Our experience indicates that early intervention is necessary for patients who have a wandering abdominal mass to avoid complications and urgent surgery, whether it is an ovarian cyst or an enteric duplication cyst

Introduction

Case Summary

Findings

Discussion