Abnormal Development - Anencephaly: Difference between revisions

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==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>]]
A neural tube defect, {{anencephaly}} is a failure of the neural tube to close cranially. Also called exencephaly or craniorachischisis.
A neural tube defect, {{anencephaly}} is a failure of the neural tube to close cranially. Also called exencephaly or craniorachischisis. The fortification of foods with folate has led to an overall decrease in the rate of this abnormality, showing that, at least in some cases, there is an association with maternal diet during pregnancy.
 


:'''Links:''' [[Abnormal_Development_-_Folic_Acid_and_Neural_Tube_Defects|Low Folic Acid and NTDs]]
:'''Links:''' [[Abnormal_Development_-_Folic_Acid_and_Neural_Tube_Defects|Low Folic Acid and NTDs]]

Revision as of 05:26, 26 May 2018

Embryology - 28 Mar 2024    Facebook link Pinterest link Twitter link  Expand to Translate  
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LA00 Anencephaly or similar anomalies

The above  ICD-11 International Classification of Diseases code is from the next version update due for release in 2018. ICD-10 is the 10th revision, Australian Modification (ICD-10-AM) is currently in use in Australian hospitals for admitted patients.

ICD-10 Q00 Anencephaly and similar malformations

  • Q00.0 Anencephaly, Acephaly, Acrania, Amyelencephaly, Hemianencephaly, Hemicephaly
  • Q00.1 Craniorachischisis
  • Q00.2 Iniencephaly
About International Classification of Diseases  

The International Classification of Diseases (ICD) World Health Organization's classification used worldwide as the standard diagnostic tool for epidemiology, health management and clinical purposes. This includes the analysis of the general health situation of population groups and is used to monitor the incidence and prevalence of diseases and other health problems. Within this classification "congenital malformations, deformations and chromosomal abnormalities" are (Q00-Q99) but excludes "inborn errors of metabolism" (E70-E90).

ICD-10 - Neural

ICD-10 Links: XVII Congenital Malformations | System Tables | XVI Perinatal Period | XV Pregnancy Childbirth | Abnormal Development | Prenatal Diagnosis | Birth | Neonatal Diagnosis |  ICD-11 | Reports


External WHO Links: ICD-10 | ICD-11

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. The fortification of foods with folate has led to an overall decrease in the rate of this abnormality, showing that, at least in some cases, there is an association with maternal diet during pregnancy.


Links: Low Folic Acid and NTDs
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

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Search term: Anencephaly

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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]

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

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


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Cite this page: Hill, M.A. (2024, March 28) Embryology Abnormal Development - Anencephaly. Retrieved from https://embryology.med.unsw.edu.au/embryology/index.php/Abnormal_Development_-_Anencephaly

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© Dr Mark Hill 2024, UNSW Embryology ISBN: 978 0 7334 2609 4 - UNSW CRICOS Provider Code No. 00098G