Is hepatic steatosis same as steatohepatitis?

Not the same: "itis" means inflammation, so "steatohepatitis" is a liver inflammed in association with fatty infiltration. Steatosis just means fat has accumulated in the liver, without associated inflammation. A chronically inflammed liver is at risk for cirrhosis and liver cancer, so it is important to reverse steatohepatitis when possible (ie.Weight loss, correct diabetes & high cholesterol, stop alcohol).