Unusual Pediatric Abdominal Cysts: A Pictorial Review of Imaging Findings

Abstract

         This article presents images and imaging features of unusual abdominal cysts in pediatric population. Recognition of imaging features and their location are helpful in diagnosis and therapeutic decision. Meconium pseudocyst usually has calcified wall and may contain debri or air. Lymphangioma can be located in mesentery or omentum and presents as uni or multilocular cyst. Pseudocyst is the most common complication of acute pancreatitis. Ovarian cyst is sometimes present as an abdominal mass in the newborn and young child. Cystic mass containing fat and calcifications is the pathognomonic finding of mature cystic teratoma. Duplication cyst has gut signature or double wall sign on ultrasound. Communication with bile duct is the helpful clue in diagnosis of choledochal cyst. When adrenal hemorrhage liquefies, it becomes cystic and gradually decreases in size.