what is steatosis
1. 14. Steatosis (fatty liver) is an accumulation of fat in the liver. Steatohepatitis is when this progresses to become associated with inflammation. Fatty liver disease is divided into: 1  Alcohol-related fatty liver disease. 2  Non-alcoholic fatty liver disease (NAFLD).teatosis (fatty liver) is an accumulation of fat in the liver. Steatohepatitis is when this progresses to become associated with inflammation. Fatty liver disease is divided into: 1  Alcohol-related fatty liver disease.