Читать книгу Ridley's The Vulva - Группа авторов - Страница 16

  Vulval embryology Sexual determination and differentiation Early female embryogenesis (weeks 1–8) Carnegie stage 1–3 Carnegie stages 4–6 Carnegie stage 8 Carnegie stage 9 Carnegie stage 11 Carnegie stages 13 and 14 Carnegie stages 15 and 16 Carnegie stage 19 Carnegie stages 20–23 End of the female embryonic period and further development (week 8 onwards) Development of the epithelia

  Disorders of Sexual Development Sex Chromosome DSD Turner’s syndrome Mosaicism 46,XX DSD Foetal androgen excess Maternal androgen excess Exogenous androgen excess 46,XY DSD Disorders of gonadal development Complete or partial gonadal dysgenesis Ovotesticular disorder

  Structural developmental defects Vagina Vaginal agenesis (Müllerian agenesis) Vaginal atresia Vaginal septa Imperforate hymen Vaginal cysts

  External genitalia

  Vulval and urinary system abnormalities Kidney Ureter Bladder Urethra

  Vulval and intestinal abnormalities

  Patient Support Groups

  References

A basic knowledge of the normal embryogenesis and organogenesis of the female genital tract is important in order to understand the developmental abnormalities that may arise. The embryogenesis of the female genital tract is closely linked to that of the urinary tract and the terminal portion of the gastrointestinal tract, which explains why developmental abnormalities of the female genital tract are often seen in association with anomalies of these systems.