White adipose is compose of white fat cells, or adipocytes, very large cells that may reach more than 100 microns in diameter. Most of the cytoplasm is occupied by a large lipid drop that is empty in most of the histological slides because fat is removed during the histological process. The remaining cytoplasm and the nucleus are distributed in a narrow space near the plasma membrane. Mature adipocytes have a single drop of fat and are therefore named as unilocular adipocytes. During differentiation small fat droplets condense into other larger ones, which become a large one when the adipocyte is totally differentiated.