Cancer Types – Gallbladder Cancer

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Gallbladder Cancer: Overview

Approved by the Cancer.Net Editorial Board, 09/2014

About the gallbladder

The gallbladder is a pear-shaped organ located just under the liver. The gallbladder stores bile, a fluid made by the liver that helps to digest fats. Bile is released from the gallbladder through a tube, called the common bile duct, as food is broken down in the stomach and intestines.

The gallbladder’s wall is made up of three main layers of tissue: the mucosa, which is the innermost layer and covers the wall of the gallbladder; the muscularis, the middle layer of smooth muscle; and the serosa, the outer layer. Primary gallbladder cancer begins in the inner layer and spreads into the outer layers as it grows.

Read more about gallbladder cancer here.

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