Adenocarcinoma of the Gallbladder in a 73-Year-Old Man: A Rare Case Report

Primary gallbladder cancer is a rare malignancy and it is difficult to be diagnosed because there are no specific signs and symptoms at the initial stage. The most important risk factors include female gender, the age of more than 65 years, and having large gallstones. The authors present a rare and unusual case of adenocarcinoma of the gallbladder because the reported case is a male patient from Asia and had acalculous cholecystitis.