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. Author manuscript; available in PMC: 2017 Jan 20.
Published in final edited form as: Differentiation. 2016 Jan 20;91(1-3):1–18. doi: 10.1016/j.diff.2016.01.004

Figure 1.

Figure 1

Optical Projection Tomography of a 7.5 week human fetal penis at the indifferent stage of development. The epithelium is stained for E-Cadherin. Histologic sections A –F correspond to the horizontal lines in the gross OPT specimen. Note the epithelial tag in A (arrow), the urethral plate in B (arrow), canalization of the urethral plate in C & D (arrow), the urethral groove in D, the urethral meatus in E and the tubular urethral in F (white arrows). Adapted from Li et al. 2014 with permission.