ob

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Author:
rbeacr
ID:
120674
Filename:
ob
Updated:
2011-12-04 13:44:01
Tags:
28
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Description:
The neonatal and pediatric pelvis
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  1. uterine anomolies associated with
    urinary anomolies
  2. gonads
    • first part of genital system to develop
    • arise from gonadal ridges
    • gonad ridges form primary sex cords
  3. oogonium
    • form primary oocyts
    • cell produced at an early stage in the formation of ovum
  4. oocyte
    primative ovum before developed completely
  5. paramesonephric ducts
    • mullerian ducts
    • form into female reproductive system (uterus and upper vagina)
    • paired ducts that form adjacent to mesonephric ducts in embryo
    • male of femaleness determined at 9wks gest.
    • fully developed at 12 wks
  6. newborn uterus
    • pear shaped
    • echogenic from maternal horomones
    • 3.5 cm
    • 1:2 fundus to cervix
  7. prepubertal uterus >2months
    • 2.5-3 cm
    • 1:1 cervix/fundus ratio
  8. post puberty uterus
    • 5-7 cm
    • 3:1 fundus to uterus ratio
  9. sonohysterosalpigography
    injection of contrast through catheter in vagina
  10. vaginal atresia
    • failure of vagina to open
    • results in hydrocolops, hydrometrocolpos, hematometrocolops
  11. hydrocolops
    hydrometrocolops
    hematometrocolops
    • fluid filled vagina
    • fluid filled vagina and uterus
    • blood filled vagina and uterus
  12. unicornuate uterus
    • infertility and pregnancy loss
    • cigar shaped- long slender
    • one fallopian tube
    • class II
  13. Uterus didelphys
    • complete duplication of uterus, cervix, vagina
    • no fertility problems
  14. bicornuate uterus
    • duplication of uterus with common cervix
    • low incidence of fertility problems
  15. septate uterus
    • high infertility
    • two closely spaced cavities
    • one fundus- maybe two cervix
  16. DES uterus
    • drug in 70s to treat habitual abortion
    • estrogenic properties
    • t-shaped uterine cavity
  17. hermaphroditism
    • ambiguous genitalia
    • both ovarian and testicular tissue
  18. precocious puberty/ pseudopuberty
    • secondary sex characteristics and increase in size and activity of gonads
    • pseudo-no gonad activity

    adrendal gland tumors or cysts sythesize excess gonadal steroids
  19. neonatal ovarian cysts
    • most resolve spontaneously
    • 3-7mm common
    • can hemorrhage and cause salpingotorsion
  20. ovarian torsion
    • most occur in first two decades of life (mobile adnexa)
    • rotation causing hemorrhagic infarction
    • necrosis
  21. ovarian teratoma
    • uncommon in neonate and adolescent
    • germ cell tumors are 60% under 20 yrs

    most common is the benign germ cell teratoma or dermoid cyst, 5-15cm

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