Abnormal Development - Anencephaly: Difference between revisions

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=Q00 Anencephaly and similar malformations=
* Q00.0 Anencephaly, Acephaly, Acrania, Amyelencephaly, Hemianencephaly, Hemicephaly
* Q00.1 Craniorachischisis
* Q00.2 Iniencephaly
==Introduction==
==Introduction==
[[File:USA_anencephaly_rates.jpg|thumb|300px|Anencephaly Rates (USA Data)<ref>Mathews TJ. '''Trends in spina bifida and anencephalus in the United States, 1991-2005''', National Vital Statistics System.</ref>]]
[[File:USA_anencephaly_rates.jpg|thumb|300px|Anencephaly Rates (USA Data)<ref>Mathews TJ. '''Trends in spina bifida and anencephalus in the United States, 1991-2005''', National Vital Statistics System.</ref>]]
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<pubmed limit=5>Anencephaly</pubmed>
<pubmed limit=5>Anencephaly</pubmed>
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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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Revision as of 03:57, 26 May 2018

Embryology - 16 Apr 2024    Facebook link Pinterest link Twitter link  Expand to Translate  
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Q00 Anencephaly and similar malformations

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

Introduction

Anencephaly Rates (USA Data)[1]

A neural tube defect, anencephaly is a failure of the neural tube to close cranially. Also called exencephaly or craniorachischisis.

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Search term: Anencephaly

<pubmed limit=5>Anencephaly</pubmed>

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

Dodds GS. and Deangelis E. An anencephalic human embryo 16.5 mm long. (1937) Anat. Rec. 67(4): 499-505.

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, April 16) Embryology Abnormal Development - Anencephaly. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Abnormal_Development_-_Anencephaly

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