Fig. 1. Clinical findings of a patient with XY pure gonadal dysgenesis. (A) Normal external female genitalia with an intact hymen. (B) Small uterus (asterisk). (C) Left streak ovary (arrow) and fallopian tube (arrowhead). (D) Right streak ovary (arrow) and fallopian tube (arrowhead). (E) Left streak ovary and fallopian tube transected with LigaSure. (F) Right streak ovary and fallopian tube transected with LigaSure. (G) Microscopic finding of a streak ovary in a patient with XY pure gonadal dysgenesis, showing simple cuboidal lining of modified mesothelial cells in the superficial epithelium of the streak ovary. The underlining stroma is composed of spindled cells arranged in parallel or a storiform pattern, which are characteristic findings of ovaria stroma (H&E, ×100). (H) Gross finding of inguinal testes in a patient with complete androgen insensitivity syndrome. (I) Microscopic finding of inguinal testes in a patient with complete androgen insensitivity syndrome, showing immature testicular tubules with a thick hyalinized basement membrane (H&E, ×100).