“…Heterotopic tissue of various types in the gallbladder has been described in the literature, including gastric mucosa, pancreatic tissue, liver tissue, and others such as adrenal and thyroid tissue (2). Heterotopic gastric mucosa can be found anywhere in the alimentary tract from the tongue to the rectum, however, heterotopic gastric mucosa in the gallbladder is a rare entity (3,4). Heterotopic gastric mucosa, as well as intestinal metaplasia in the gallbladder, may be one of the causes of gallbladder cancer (3).…”