FIG. 6.

(a–d) Comparative 2D B-scans (a, b) and histology (c, d) images between EVPOME (11 days postseeding) that was properly developed and keratinized (a and c) EVPOME that was poorly evolved and differentiated (b and d). The keratin levels in the properly developed specimens are significantly greater in the staining and reflectivity (arrows). The lower acoustic reflection in the surface of the poorly developed EVPOME is a result of the reduced keratin layer on the surface (asterisk). Scale bars equal 100 μm. Color images available online at www.liebertpub.com/tec