"Cameron lesions" is a term used to describe erosions or ulcers in the lining of the stomach that are located in the folds or creases of the stomach. These lesions can cause gastrointestinal bleeding and can be difficult to diagnose as they are often hidden from view during routine endoscopy exams. Synonyms for "Cameron lesions" include "gastrointestinal dieulafoy lesion," "Mallory-Weiss tear," "peptic ulcer disease," and "gastroesophageal reflux disease." Early detection and treatment of Cameron lesions is important to prevent further complications such as anemia and shock. Treatment may include lifestyle changes, medication, or surgery depending on the severity of the lesion.