Urethral Duplication with a Cystic Phallic Urethra Associated with a Uterus Didelphys, Partial Agenesis of the Tibia, and an Equinovarus Foot

Figure 7

(a-b) Diagram of the urogenital sinus (UGS) at about 12 weeks and 9 months (source: http://www.embryology.ch/francais/ugenital/genitinterne06.html). (a) Urogenital sinus (UGS) at about 12 weeks: (1) genital tubercle, (2) vestibule, (2a) urogenital sinus (UGS) phallic portion, (2b) UGS pelvic portion, (3) vaginal epithelial blade, (4) perineum, (5) rectum, (6) uterovaginal canal, (7) bladder, and (8) urethra. (b) Definitive vestibule, uterus, and vagina at about the 9th month: (2) definitive vestibule, (3a) uterus (body), (3b) uterus (cervix), (6a) lower 1/4 of the vagina (endoblast), (6b) upper 3/4 of the vagina (mesoblast), and (9) hymen.

(a)

(b)