Stem cells are undifferentiated biological cells which can differentiate into specialized cells and can divide through mitosis to produce more stem cells. They are found in multicellular organisms. Adipose tissue (lipid cells) which are extracted by liposuction.
Adipose stem cells are undifferentiated cells of a multicellular organism which is capable of giving rise to indefinitely more cells of the same type, and from which certain other kinds of cell arise by differentiation.