acrania


Also found in: Dictionary, Encyclopedia, Wikipedia.
Related to acrania: exencephaly

acrania

 [ah-kra´ne-ah]
partial or complete absence of the cranium. adj., adj acra´nial.

A·cra·ni·a

(ă-krā'nē-ă),
A group of the phylum Chordata; its members possess a notochord, gill slits, and nerve cord but no vertebrae, ribs, or skull; for example, Amphioxus, tunicates, and acorn worms.
[G. a- priv. + kranion, skull]

a·cra·ni·a

(ă-krā'nē-ă),
Complete or partial absence of a cranium; associated with meroanencephaly (anencephaly).
[G. a- priv. + kranion, skull]

A·cra·ni·a

(ă-krā'nē-ă)
A group of the phylum Chordata, the members of which possess a notochord, gill slits, and nerve cord but no vertebrae, ribs, or skull; e.g., Amphioxus, tunicates, and acorn worms.
[G. a- priv. + kranion, skull]

a·cra·ni·a

(ă-krā'nē-ă)
Complete or partial absence of a cranium; associated with meroencephaly.
[G. a- priv. + kranion, skull]

acrania

Partial or complete absence of the skull bones and sometimes of other head bones at birth. See also ANENCEPHALY.

Acrania

an outdated taxonomic term often used as a synonym of PROTOCHORDATE, but in some classifications limited to synonymy with CEPHALOCHORDATE.

acrania

partial or complete absence of the cranium.
References in periodicals archive ?
A case of Adams-Oliver syndrome associated with acrania, microcephaly, hemiplegia, epilepsy, and mental retardation.
A subsequent ultrasonographic evaluation suggested a diagnosis of acrania at approximately 20 weeks of EGA.
la falta de encefalo y de medula espinal determina la ausencia de boveda craneana y de columna vertebral con las consecutivas acrania y raquisquisis total.
Exencephaly (differential diagnosis includes acrania, acalvaria, anencephaly, large encephalocele or amniotic band syndrome.
A trained clinician in fetal imaging may be able to identify acrania, anencephaly, and encephalocele, for example.
9%)] Acrania 1 Dandy walker malformation 1 Polyscystic kidneys 2 Renal Anomalies, [4 (6.
A 40-year-old woman at 16 weeks' gestation underwent D&E for fetal acrania diagnosed on ultrasound.
In addition to the CVS, the anatomical survey detected 2 fetuses with acrania, 2 with multi-structural abnormalities, and 4 with multi-structural abnormalities that were characteristic of trisomy 13, trisomy 18, trisomy 21 and Turner's syndrome, respectively.
Las tasas de deteccion mas altas fueron encontradas en alteraciones graves del sistema nervioso central como la esquizencefalia, holoprosencefalia, acrania y espina bifida, llegando hasta el 100%.