What condition is characterized by inflammation of the appendix?

The condition characterized by inflammation of the appendix is known as acute appendicitis. This occurs when the appendix, a small pouch attached to the large intestine, becomes inflamed, often due to an obstruction that leads to increased pressure, bacterial growth, and possibly infection. Acute appendicitis typically presents with symptoms such as abdominal pain (usually starting near the belly button and then moving to the lower right abdomen), nausea, vomiting, and fever. If left untreated, acute appendicitis can lead to serious complications such as perforation of the appendix, which can result in peritonitis, a severe abdominal infection.

Cholecystitis involves inflammation of the gallbladder, typically due to gallstones, and is not related to the appendix. Diverticulitis is the inflammation of diverticula in the colon, often associated with dietary factors, and gastritis refers to the inflammation of the stomach lining. Each of these conditions affects different organs and has distinct causes and symptoms, further solidifying why acute appendicitis specifically refers to the inflammation of the appendix.