The gallbladder is a small pear-shaped pouch located in the upper right quadrant of the abdomen, just below the liver. Cholelithiasis is the name we give to the presence of stones in the gallbladder, a condition that may be asymptomatic in some cases, but can also cause abdominal pain if there is inflammation of the gallbladder.
Pancreatitis is the term used to describe inflammation of the pancreas. When inflammation of the pancreas occurs suddenly, i.e., sharply, we are facing an acute pancreatitis.
The abdominal region is one that has more organs in our body than any other, therefore, is subject to ache due to a multitude of different causes and diseases.