Acute pancreatitis or acute pancreatic necrosis is a sudden inflammation of the pancreas. Depending on its severity, it can have severe complications and high mortality despite treatment. While mild cases are often successfully treated with conservative measures, such as NPO (nil by mouth or NBM) and IV fluid rehydration, severe cases may require admission to the ICU or even surgery (often requiring more than one intervention) to deal with complications of the disease process.

Liver hemangioma is a noncancerous (benign) mass that occurs in the liver. A liver hemangioma is made up of a tangle of poorly formed blood vessels. Liver hemangioma is sometimes called hepatic hemangioma or cavernous hemangioma.

Focal nodular hyperplasia ( FNH) is a benign tumour of the liver (hepatic tumour), which is the second most prevalent tumour of the liver (the first is hepatic hemangioma). It is usually asymptomatic, rarely grows or bleeds, and has no malignant potential. This tumour is often resected because it is difficult to distinguish from hepatic adenoma.