Anencephaly: Difference between revisions

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==International Classification of Diseases==
! International Classification of Diseases  
 
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Q00 Anencephaly and similar malformations
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===Q00 Anencephaly and similar malformations===
* Q00.0 Anencephaly, Acephaly, Acrania, Amyelencephaly, Hemianencephaly, Hemicephaly
* Q00.0 Anencephaly, Acephaly, Acrania, Amyelencephaly, Hemianencephaly, Hemicephaly
* Q00.1 Craniorachischisis
* Q00.1 Craniorachischisis
* Q00.2 Iniencephaly
* Q00.2 Iniencephaly
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==Ultrasound==
[[File:Anencephaly_ultrasound.jpg|600px]]
[[File:Anencephaly_ultrasound.jpg|600px]]


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:'''Links:''' {{maternal diabetes}}
:'''Links:''' {{maternal diabetes}}


==Historic Anencephaly===
==Historic Anencephaly===

Revision as of 03:49, 26 May 2018

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Introduction

Anencephaly Rates (USA Data)[1]

This is a neural tube defect, the basis of the abnormality is a failure of the neural tube to close cranially. Also called exencephaly or craniorachischisis.

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Search term: Anencephaly

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International Classification of Diseases

Q00 Anencephaly and similar malformations

  • Q00.0 Anencephaly, Acephaly, Acrania, Amyelencephaly, Hemianencephaly, Hemicephaly
  • Q00.1 Craniorachischisis
  • Q00.2 Iniencephaly

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Fetal Anencephaly
Spina bifida front.JPG ZAnencephaly.jpg
ventral view lateral view

Ultrasound

Anencephaly ultrasound.jpg

Anencephaly in a fetus (GA week 18) from a diabetic mother. Ultrasound images (coronal) show a complete absence of the cranial vault and brain and enlarged orbits.[2]


Links: maternal diabetes

Historic Anencephaly=

These drawings are from a 1921 study of a single embryonic anencephaly.[3]

  • Fig. 1. Reconstruction of anencephalic embryo.

    Fig. 1. Reconstruction of anencephalic embryo.

  • Fig. 2. Hind-brain 28 mm embryo (left view).

    Fig. 2. Hind-brain 28 mm embryo (left view).

These drawings are from a 1925 study of 57 cases of anencephaly.[4]

  • anencephalic acranius

    anencephalic acranius

  • anencephalic craniorhachischisis

    anencephalic craniorhachischisis

  • microcephalic acrauius

    microcephalic acrauius

  • microcephalic craniorhachischisis

    microcephalic craniorhachischisis

  • exocephalic acranius

    exocephalic acranius


References

  1. ↑ Mathews TJ. Trends in spina bifida and anencephalus in the United States, 1991-2005, National Vital Statistics System.
  2. ↑ Alorainy IA, Barlas NB & Al-Boukai AA. (2010). Pictorial Essay: Infants of diabetic mothers. Indian J Radiol Imaging , 20, 174-81. PMID: 21042439 DOI.
  3. ↑ Frazer JE. Report on an anencephalic embryo. (1921) J Anat. 56(1): 12-9. PMID 17103933
  4. ↑ Nañagas JC. A comparison of the growth of the body dimensions of anencephalic human fetuses with normal fetal growth as determined by graphic analysis and empirical formulae. (1925) American J. Anatomy. 455-494.


Journals

Journal of Pediatric Neurosciences - is official publication of the Indian Society for Pediatric Neurosurgery.

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Cite this page: Hill, M.A. (2024, May 19) Embryology Anencephaly. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Anencephaly

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