Figure 3.

Photomicrographs of cryosections of (A) control and (B) HUCPVC-treated defects at 7 days showing incomplete re-epithelialization in the control and complete re-epithelialization in the HUCPVC specimen. Note the prominent microvasculature in (B). (C and D) show a pair of serial cryosections of a HUCPVC-treated defect at 7 days. (C) stained with Toluidine blue, shows the general tissue morphology with rete ridge formation, while the epifluorescent image in (D) shows the localization of the HUCPVC in the dermis. Field widths: (A and B) 2,144 µm, (C and D) 858 µm.