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Gallbladder

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The gallbladder is a small, pear-shaped organ that plays a crucial role in our digestive system. Measuring about 10 cm in length, it is comparable in size to a kiwi fruit and is located in a hollow area on the lower surface of the liver. The gallbladder's primary function is to store and concentrate bile, a fluid produced by the liver that aids in digestion.
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Related Experiment Video

Updated: Jun 15, 2026

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

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

Published on: August 23, 2022

Gallbladder agenesis in a Chihuahua.

Hiroaki Kamishina¹, Masaaki Katayama, Yasuhiko Okamura

¹Department of Veterinary Medicine, Iwate University, Iwate, Japan. kamicna@iwate-u.ac.jp

The Journal of Veterinary Medical Science

|March 11, 2010

Summary

A Chihuahua diagnosed with gallbladder agenesis, a rare congenital condition, experienced liver enzyme elevations. This case highlights the importance of diagnostic imaging and surgical exploration for canine liver disease.

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Area of Science:

Veterinary Medicine
Canine Hepatology
Congenital Abnormalities

Background:

A 4-year-old male Chihuahua presented with anorexia and vomiting.
Persistent elevation of liver enzymes indicated underlying hepatic pathology.

Observation:

Ultrasonography suggested the absence of a gallbladder.
Exploratory laparotomy and retrograde cholangiography confirmed gallbladder agenesis.

Findings:

Hypoplasia of the right medial and lateral liver lobes was suspected.
Histopathology revealed bile ductule proliferation, portal fibrosis, and pseudolobular formation.

Implications:

This case underscores gallbladder agenesis as a differential diagnosis in dogs with liver enzyme abnormalities.
Understanding these congenital liver anomalies is crucial for accurate diagnosis and management in veterinary practice.