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Extrahepatic Bile Duct and Gall Bladder Dissection in Nine-Day-Old Mouse Neonates

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Gall bladder duplication: A rare biliary malformation.

Hari Om Joshi¹, Dipesh Poudel¹, Prashant Khatiwoda¹

¹Department of Radiology, National Academy of Medical Sciences (NAMS), Bir Hospital, Mahabouddha, Kathmandu, 44600, Nepal.

Radiology Case Reports

|January 15, 2025

Summary

Gallbladder duplication, a rare congenital anomaly, was incidentally found in a 35-year-old female. This case highlights the importance of recognizing this biliary tract variation during imaging to prevent surgical complications.

Keywords:

Anatomical variation Duplication Gallbladder

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Area of Science:

Gastroenterology and Hepatobiliary Medicine
Anatomical Pathology
Medical Imaging

Background:

Gallbladder duplication is an uncommon congenital anomaly with an incidence of 1 in 3800-4000 live births.
It arises from aberrant development of the biliary system during embryogenesis.
This condition often presents asymptomatically, posing diagnostic challenges.

Observation:

A 35-year-old female presented with intermittent lower abdominal pain, initially suspected to be an adnexal cyst.
Subsequent imaging, including CT and ultrasound, revealed two distinct gallbladder-like structures in the typical gallbladder location.
Each structure possessed a cystic duct that joined the common bile duct, consistent with H-shaped gallbladder duplication.

Findings:

The patient's primary symptoms were attributed to ovarian cysts, unrelated to the gallbladder anomaly.
The gallbladder duplication was an incidental finding during the diagnostic workup.
The duplicated gallbladders were anatomically normal, with functional cystic ducts connecting to the common bile duct.

Implications:

This case emphasizes the critical need for radiologists and surgeons to be aware of gallbladder duplication during imaging and surgical planning.
Undiagnosed gallbladder duplication can lead to intraoperative complications, particularly during procedures involving the biliary tree or adjacent organs.
Increased awareness can improve patient safety and guide appropriate management strategies for this rare anomaly.