Gallbladder cancer occurs when growth of abnormal cells arise in the gallbladder. The gallbladder is located on the right side of the abdomen, underneath the liver. The function of the gallbladder is to store bile and digestive fluid that is released by the liver. Early detection and diagnosis of gallbladder cancer can increase the outcome of the treatment, but early-stage of gallbladder cancer are usually asymptomatic and could be difficult to detect.
Gallbladder cancer occurs when there is a change of DNA in the gallbladder. DNA in cells alters the cell’s behavior. Therefore, the cell mutation in the gallbladder causes uncontrolled duplication, resulting in forming a mass of cells also known as a tumor. This tumor then begins to invade and destroy the healthy tissues. These cells have the tendency to metastasize (spread to other parts of the body).
Gallbladder cancer mostly starts growing in the glandular cells that are aligned with the inner part of the gallbladder. When gallbladder cancer occurs in glandular cell, the disease is called adenocarcinoma.