OB CH 58

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Author:
rbeacr
ID:
148433
Filename:
OB CH 58
Updated:
2012-04-18 20:16:07
Tags:
Fetal face neck
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Description:
fetal face and neck
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  1. how often do congenital anomolies effect the face?
    1 in 600 births
  2. brachial apparatus
    • brachial arches pouches membranes and grooves resemble gills
    • 4th week- 6 arches (4 visable)

    • 5th week- 5 prominences
    • frontal nasal
    • paired maxillary
    • paired mandibular
  3. when can features of the face be identified?
    end of 1st trimester
  4. When is the fetal face imaged well tv?
    end of 1st to early 2nd tri
  5. craniosynostosis
    premature closure of any or all 6 cranial sutures

    • abnormally shaped cranium
    • Aperts
  6. clover leaf skull
    • Kleeblattschadel
    • clover shape in anterior view
    • associated with skletal dysplasia (thanatophoric dysplasia) and ventriculomegaly
  7. trigonocephaly
    • premature closure of metopic suture
    • tall in sagital
    • triangular in axial
  8. frontal bossing
    • big forehead
    • spina bifida- lemon
    • skeletal dysplasia
  9. maxillary hypoplasia
    • midface hypoplasia
    • under development of middle structures
    • chromosomal anomolies
    • craniosynostosis
  10. frontonasal dysplasia
    midline facial clefts ( eyes forehead nose)

    hypertelorism primary finding
  11. NT optimal gest age
    • 11-14 weeks
    • >3mm abnormal

    chromosomal anom or hear defect
  12. epignathus
    teramoma of throat mouth
  13. macroglossia
    • protrusion of tounge
    • beckwith- widemann (organomegaly)
  14. micrognathia
    • small chin
    • Trisomy 13/18

    • chromosomal
    • skeletal dysplasia
    • mandibular disorder

    polyhydraminos if cant swallow
  15. mandibular disorders
    • pierre robin syndrome
    • treacher collins syndrome
  16. ears imaged in what view
    para saggital or coronal plane
  17. ear malformations associated with what syndrome
    Goldenhars
  18. anopthalmia
    absent eye
  19. hemifacial microsomia
    smallness of one side of the face
  20. small ears associated with what synd
    • Roberts
    • Premaxillary protuberence
  21. otocephaly
    • rare anomoly
    • absence of mandible
    • ears form close together near neck
  22. microphthalmia
    small eyes
  23. anophthalmia
    absent eyes
  24. dacryocystoceles
    lacrimal duct cysts
  25. hyaloid artery
    • may be observed in axial plane in fetal eye
    • regresses after 3rd trimester
  26. strabismus
    eye disorder in which optic axes cannot be directed to same object
  27. exophthalmia
    abnormal protrusion of eyeballs
  28. hypotelorism
    decreased distance between orbits


    holoprosenchaly
  29. hypertelorism syndromes
    • Pfeiffer
    • Aperts ( also brachycephaly ventriculomegaly)
  30. cebocephaly
    single nostril nose
  31. what % of all births are cleft lip
    10-12%
  32. most common cong anom of the face
    cleft lip with or without palate
  33. most cleft palates in what culture
    • Native americans
    • then
    • asians
    • caucasians
    • african americans
  34. most common neck mass
    cystic hygroma colli
  35. exit procedure
    • ex utero intrapartum treatment
    • when head is delivered but body is not
    • for babies with airway compression
  36. cystic hygroma
    • turners syndrome
    • lymphatic system malformation
    • 50% associated with chrom anomolies
    • may be small and regress
    • with fetal hydrops 100% mortality
  37. nuchal fold
    • 6mm
    • tangential view
    • 15-21 weeks
    • chrom anom- trisomy 21
  38. fetal goiter
    • maternal thyroid disease
    • thyromegaly
    • symmetrical solid homogeneous mass on anterior neck
    • may obstruct esophagus- hydraminous- no stomach fillign
  39. PUBS
    • percutaneous umbilical blood sampling
    • for thyroid function
  40. tetatoma
    • neck teratoma unilateral and anterior
    • complex

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