What condition is characterized by inflammation of the gallbladder?

Cholecystitis is the condition characterized by inflammation of the gallbladder. This inflammation can occur due to various reasons, including the presence of gallstones that block the cystic duct, leading to an accumulation of bile and subsequent infection or irritation of the gallbladder tissue. Symptoms of cholecystitis may include severe abdominal pain, fever, and nausea, often related to the digestive process, especially after eating fatty foods.

In contrast, hepatitis refers to inflammation of the liver, not the gallbladder. Pancreatitis is inflammation of the pancreas and is associated with abdominal pain and digestive issues related to enzyme dysfunction. Gastritis involves inflammation of the stomach lining, which can lead to symptoms such as stomach pain and discomfort, but does not involve the gallbladder. Understanding the specific organs and conditions involved helps clarify why cholecystitis is the correct answer.