👉 Dypterygia is a type of cancer that occurs in the cells lining the stomach, esophagus, and small intestine. It's characterized by growths called tumors that develop from abnormal cells, often caused by genetic mutations or environmental factors such as smoking. The term "dystrophy" refers to an abnormality or defect in muscle function, where a person's muscles are not functioning properly due to the loss of nerve fibers, which can lead to weakness and difficulty walking.