What is the most common type of benign gallbladder tumor?

The most common type of benign gallbladder tumor is indeed an adenoma. Adenomas are typically asymptomatic and are often discovered incidentally during imaging studies for other conditions. They arise from the epithelial cells lining the gallbladder and can be classified into different types based on their histological features and growth patterns.

The prevalence of adenomas compared to other gallbladder lesions contributes to their classification as the most common benign tumors. Although they have the potential for malignant transformation, particularly larger adenomas, the majority remain benign and do not lead to significant health issues. Their management often involves monitoring unless they exhibit concerning features suggestive of malignancy.

In contrast, choledocholithiasis refers to the presence of gallstones in the common bile duct, which is a complication of gallbladder disease but not a tumor. Cholangitis is an infection of the bile duct system, characterized by a triad of fever, jaundice, and right upper quadrant pain, and is also not a type of tumor. Sclerosing cholangitis is a chronic condition that causes inflammation and fibrosis of bile ducts but does not relate to gallbladder tumors at all. Each of these conditions is associated with gallbladder or biliary pathology, but they do