Inactivated Nevus Tissue with High Hydrostatic Pressure Treatment Used as a Dermal Substitute after a 28-Day Cryopreservation Period

Figure 6

Scanning electron microscopy images of untreated, fresh, and cryopreserved nevus tissues. The epidermis disappeared in the fresh and cryopreserved groups. Densely packed collagen fibers constitute the dermal layer with no vesiculation or laceration, and the density of the collagen fibers appeared to be almost the same in all groups. No fibril fragmentation or swelling was observed among the three groups. D: dermis; E: epidermis.