Figure 1.

Representative SEM (a,b) and TEM (c) images of the Rigenera^® product obtained from the thigh. The Rigenera^® device provides fragments consisting of elastic fibers ((a) black arrow), collagen fibers ((a,b) white arrow), and different kinds of isolated cells (b), including mesenchymal-like cells (c), characterized by rough endoplasmic reticulum (black arrow) and lipidic droplets (white arrow). No differences at an ultrastructural level were found between the two sites of adipose tissue collection (thigh and abdomen).