Lipoblast

A lipoblast is a precursor cell for an adipocyte.

Alternate terms include adipoblast and preadipocyte.

Early stages are almost indistinguishable from fibroblasts.

Liposarcoma
Lipoblasts are seen in liposarcoma and characteristically have abundant multivacuolated clear cytoplasm and a dark staining (hyperchromatic), indented nucleus.