Type:
Educational Exhibit
Keywords:
Abdomen, Anatomy, Gastrointestinal tract, CT, MR, Ultrasound, Intraoperative, Congenital, Cysts
Authors:
R. Tabone, H. Campbell, E. Arnfield, S. Byrne
DOI:
10.26044/ranzcr2022/R-0083
Background
Background:
Duplication cysts are congenital abnormalities purported to arise as a consequence of recanalization errors of the neonatal GI tract(1). Duodenal duplications make up 2-12% of duplications within the GI tract(2). Diagnosis is typically made in childhood when complications such as haemorrhage, gastric outlet obstruction or pancreatitis result in abdominal pain and/or vomiting necessitating presentation to hospital(2). Radiological differential diagnosis include intramural duodenal haematoma or choledochocele. Standard treatment of duodenal duplication cysts is surgical resection. Duodenal haematomas are often managed conservatively(3)and the treatment of choice for choledochocele is endoscopic wide biliary sphincterotomy(4). The radiologist plays a critical role in establishing this often-difficult diagnosis through use of multi-modal imaging techniques and identification of key radiological features which can help separate these differentials.