NHÂN MỘT TRƯỜNG HỢP NANG RUỘT ĐÔI BIỆT LẬP SAU PHÚC MẠC THỦNG GÂY VIÊM PHÚC MẠC Ở TRẺ MẮC HỘI CHỨNG DOWN

Abstract

Isolated enteric duplication cyst (IEDC), particularly in the retroperitoneum, is an extremely rare congenital anomaly. If not diagnosed and managed in time, it may lead to serious complications such as perforation with peritonitis, intestinal obstruction, malignant transformation, or even death. Early diagnosis is often challenging due to its rarity. We present a 4-year-old girl with Down syndrome and a history of surgically corrected congenital heart disease, admitted with acute progressive abdominal pain, septic shock, and peritonitis. Initial imaging suggested an intra-abdominal abscess or mass. Definitive diagnosis of retroperitoneal IEDC perforation was achieved through surgery and histopathology. According to the literature, this is the first reported case of retroperitoneal IEDC in a child with Down syndrome, suggesting a potential association that warrants attention from both clinicians and radiologists