WordNet

absence of the head (as in the development of some monsters) (同)acephaly, acephalism

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出典(authority):フリー百科事典『ウィキペディア（Wikipedia）』「2015/06/24 09:02:42」(JST)

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Acephaly is a congenital disorder characterised by absence of the head.^[1] Unlike anencephaly which is characterised by the absence of a major portion of the brain, skull, and scalp, this type of cephalic disorder is even rarer. The acephalic fetus is a parasitic twin attached to an otherwise intact fetus. The acephalic fetus has a body but lacks a head and heart; the fetus's neck is attached to the normal twin. The blood circulation of the acephalic fetus is provided by the heart of the twin. The acephalic fetus cannot exist independently of the fetus to which it is attached. Similarly, acardiac fetuses lack everything from the heart upwards, including head and arms, and behave similarly to acephalic fetuses.

Diagnosis

It can be diagnosed using obstetric ultrasound.^[2]

References

^ "Acephaly". TheFreeDictionary. Retrieved 17 February 2013.
^ Ünsal, Alparslan; Selda Demircan Sezer; İbrahim Meteoğlu; Kübra Temoçin; Can Zafer Karaman (December 2007). "Ultrasonographic prenatal diagnosis of isolated acephaly" (PDF). Diagnostic and Interventional Radiology 13 (4): 196–198. PMID 18092292. Retrieved 17 February 2013.

External links

NINDS Overview
Lebel, Robert Roger; Carlos Mock; Jeannette Israel; William Senica (June 1994). "Twin reversed arterial perfusion syndrome, acephalic presenting at full term". TheFetus.net. Retrieved 17 February 2013.

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English Journal

Central nervous system malformations in a perinatal/neonatal autopsy series.

Pinar H1, Tatevosyants N, Singer DB.
Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society.Pediatr Dev Pathol.1998 Jan-Feb;1(1):42-8.
Congenital malformations of the central nervous system (CNS) are among the most common anomalies, but data on the incidence of CNS malformations in autopsy populations are scant. We examined 4122 autopsies between the years 1958 and 1995. There were 363 cases (8.8%) with CNS malformations; 235 were
PMID 10463270

Teratogenic effects of nickel chloride on embryonic mice and its transfer to embryonic mice.

Lu CC, Matsumoto N, Iijima S.
Teratology.Teratology.1979 Apr;19(2):137-42.
Administration of nickel chloride to the pregnant mice on the seventh to eleventh day of their gestational period, resulted in significant embryotoxic effects in terms of an increased resorption rate, a decreased fetal weight, delay in skeletal ossification and high incidence of malformation. Among
PMID 473066

Japanese Journal

Vincristineによる催奇形実験:とくに顔面異常と脳異常との関係について

日本口蓋裂学会雑誌 10(1), 9-31, 1985
NAID 130004988237

Related Pictures

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