Yeungnam Univ J Med.  2015 Jun;32(1):60-64. 10.12701/yujm.2015.32.1.60.

Choledochocele containing a stone mistaken as a distal common bile duct stone

• Kwak TY
• Park CH
• Eom SH
• Hwang HS
• Chung DW
• Seo JY
• Kim YS
• Kwak DH

• KMID: 2138647
• DOI: http://doi.org/10.12701/yujm.2015.32.1.60

Abstract

A choledochocele is an expanded sac of the duodenal side of the distal common bile duct (CBD), and is categorized as a type III choledochal cyst. Unlike other choledochal cysts, it can be easily overlooked because of its very low prevalence, non-specific clinical symptoms, and lack of distinctive radiological findings. However, a patient having a repeated pancreaticobiliary disorder with an unknown origin, frequent abdominal pain after cholecystectomy, or repeated non-specific gastrointestinal symptoms can be suspected as having a choledochocele, and a more accurate diagnosis can be achieved via endoscopic retrograde cholangiopancreatography (ERCP) and endoscopic ultrasound. Because it rarely becomes malignant, a choledochocele can be treated via endoscopic sphincterotomy (EST) and surgical treatment. The authors were able to diagnose choledochocele accompanied by a stone in a patient admitted to the authors' hospital due to cholangitis and pancreatitis. The patient's condition was suspected to have been caused by a distal CBD stone detected via multiple detector computed tomography and ERCP, and was successfully treated via EST.

Keyword

Choledochocele; Gall stone; Endoscopic retrograde cholangiopancreatography

MeSH Terms

Abdominal Pain
Cholangiopancreatography, Endoscopic Retrograde
Cholangitis
Cholecystectomy
Choledochal Cyst*
Common Bile Duct*
Diagnosis
Gallstones
Humans
Pancreatitis
Prevalence
Sphincterotomy, Endoscopic
Ultrasonography