Anencephaly: Difference between revisions

From Embryology
mNo edit summary
Line 1: Line 1:
#REDIRECT [[Neural_System_-_Abnormalities#Anencephaly]]
#REDIRECT [[Neural_System_-_Abnormalities#Anencephaly]]
==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>]]
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.
:'''Links:''' [[Abnormal_Development_-_Folic_Acid_and_Neural_Tube_Defects|Low Folic Acid and NTDs]] | [[International_Classification_of_Diseases_-_XVII_Congenital_Malformations#Congenital_malformations_of_the_nervous_system_.28Q00-Q07.29|International Classification of Diseases - Neural]]
{{Neural Links}}
==Some Recent Findings==
{|
|-bgcolor="F5FAFF"
|
|}
{| class="wikitable mw-collapsible mw-collapsed"
! More recent papers &nbsp;
|-
| [[File:Mark_Hill.jpg|90px|left]] {{Most_Recent_Refs}}
Search term: ''Abnormal Neural Development''
<pubmed limit=5>Abnormal Neural Development</pubmed>
|}
{| class="wikitable collapsible collapsed"
! International Classification of Diseases
|-
|
===Q00 Anencephaly and similar malformations===
* Q00.0 Anencephaly, Acephaly, Acrania, Amyelencephaly, Hemianencephaly, Hemicephaly
* Q00.1 Craniorachischisis
* Q00.2 Iniencephaly
|}
{|
! Fetal Anencephaly
|-
| [[File:Spina bifida front.JPG|300px]]
| [[File:ZAnencephaly.jpg|200px]]
|-
| ventral view
| lateral view
|}
[[File:Anencephaly_ultrasound.jpg|600px]]
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.{{#pmid:21042439|PMID21042439}}
:'''Links:''' {{maternal diabetes}}
==Historic Anencephaly===
These drawings are from a 1921 study of a single embryonic anencephaly.<ref name=Frazer1921>{{Ref-Frazer1921}}</ref>
<gallery>
File:Frazer1921 fig01.jpg|Fig. 1. Reconstruction of anencephalic embryo.
File:Frazer1921 fig02.jpg|Fig. 2. Hind-brain 28 mm embryo (left view).
</gallery>
These drawings are from a 1925 study of 57 cases of anencephaly.<ref name=Nañagas1925>{{Ref-Nañagas1925}}</ref>
<gallery>
File:Nanagas1925-fig01a.jpg|anencephalic acranius
File:Nanagas1925-fig01b.jpg|anencephalic craniorhachischisis
File:Nanagas1925-fig01c.jpg|microcephalic acrauius
File:Nanagas1925-fig01d.jpg|microcephalic craniorhachischisis
File:Nanagas1925-fig01e.jpg|exocephalic acranius
</gallery>
==References==
<references/>
===Journals===
[http://www.pediatricneurosciences.com  Journal of Pediatric Neurosciences] - is official publication of the Indian Society for Pediatric Neurosurgery.
===Search PubMed===
Search term: [http://www.ncbi.nlm.nih.gov/pubmed/?term=Neural+Development+Abnormalities Neural Development Abnormalities] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Anencephaly Anencephaly] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Hydrocephalus Hydrocephalus] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Encephalocele Encephalocele] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Holoprosencephaly Holoprosencephaly] | [http://www.ncbi.nlm.nih.gov/pubmed/?term=Autism Autism]
{{Glossary}}
{{Footer}}
[[Category:Abnormal Development]] [[Category:Neural]]

Revision as of 03:45, 26 Mayıs 2018

Redirect to:

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.

Links: Low Folic Acid and NTDs | International Classification of Diseases - Neural
Neural Links: ectoderm | neural | neural crest | ventricular | sensory | Stage 22 | gliogenesis | neural fetal | Medicine Lecture - Neural | Lecture - Ectoderm | Lecture - Neural Crest | Lab - Early Neural | neural abnormalities | folic acid | iodine deficiency | Fetal Alcohol Syndrome | neural postnatal | neural examination | Histology | Historic Neural | Category:Neural


Some Recent Findings

More recent papers  
Mark Hill.jpg
PubMed logo.gif

This table allows an automated computer search of the external PubMed database using the listed "Search term" text link.

  • This search now requires a manual link as the original PubMed extension has been disabled.
  • The displayed list of references do not reflect any editorial selection of material based on content or relevance.
  • References also appear on this list based upon the date of the actual page viewing.


References listed on the rest of the content page and the associated discussion page (listed under the publication year sub-headings) do include some editorial selection based upon both relevance and availability.

More? References | Discussion Page | Journal Searches | 2019 References | 2020 References

Search term: Abnormal Neural Development

<pubmed limit=5>Abnormal Neural Development</pubmed>

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


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.

Search PubMed

Search term: Neural Development Abnormalities | Anencephaly | Hydrocephalus | Encephalocele | Holoprosencephaly | Autism


Glossary Links

Glossary: A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z | Numbers | Symbols | Term Link


Cite this page: Hill, M.A. (2026, September 28) Embryology Anencephaly. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Anencephaly

What Links Here?
© Dr Mark Hill 2026, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G
Retrieved from ‘https://embryology.med.unsw.edu.au/embryology/index.php?title=Anencephaly&oldid=341186’
Powered by MediaWiki