A<unk>  is a mass filled with pus inside the<unk> . Common causes are abdominal conditions such as appendicitis or<unk> ticulitis due to haematogenous spread through the portal vein. It can also develop as a complication of a<unk>  injury.
Liver abscess
Pyogenic liver abscess
Amoebic liver abscess
Hepatolithiasis
Cholangitis 
Pancreatic abscess
Ascending cholangitis
Pancreatic cyst