When the body cannot metabolize fatty acids for energy, it stores them in cells. The term, steatosis refers to this storing process and the increased number of fat vacuoles (also called adipocytes) that they form in a cell. These vacuoles or droplets accumulate in the cytoplasm of liver cells.
A hepatologist is a doctor who specializes in the diagnosis and treatment of liver diseases.
Remember that for the proper selection of health professional that treats steatosis you must consider the nature, severity and symptoms you are presenting.