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. Author manuscript; available in PMC: 2018 Nov 1.
Published in final edited form as: Differentiation. 2017 Sep 22;98:1–13. doi: 10.1016/j.diff.2017.09.002

Figure 8.

Figure 8

Cytokeratin staining of serial sections through a non-grafted 11-week fetal clitoris. Top, A–C, approximate section levels: Distal (A), mid-shaft (B) and proximal (C) transverse sections stained for K6 and K7. K6 is expressed in the vestibular plate and in basal layers of surface epidermis, the vestibular groove and vestibule. K7 is present only in apical layers of the dorsal vestibular groove and vestibule. Uroplakin (not shown) is expressed in the same areas as K7. Bottom, D–F, approximate section levels: Distal (D), mid-shaft (E) and proximal (F) sections through the same clitoris stained for K6 and K10. K6 is expressed as above. K10 is present in surface epithelial structures, ventral and lateral aspects of the vestibule but absent in the dorsal aspects of these structures.

Gross 11-week human fetal clitoral specimen showing approximate levels of histologic sections.