Arnold-Chiari malformation

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Ar·nold-Chi·a·ri mal·for·ma·tion

(ar'nŏld kē-ah'rē), [MIM*207950]
malformed posterior fossa structures associated with caudad traction and displacement of the rhombencephalon as caused by tethering of the spinal cord; may be accompanied in some cases by spina bifida and associated anomalies such as meningomyelocele; usually multifactorial in inheritance.

Arnold-Chiari malformation

[är′nəldkē·är′ē]
Etymology: Julius Arnold, German pathologist, 1835-1915; Hans Chiari, French pathologist, 1851-1916
a congenital herniation of the brainstem and lower cerebellum through the foramen magnum into the cervical vertebral canal. It is often associated with meningocele and spina bifida. See also neural tube defect.
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Arnold-Chiari malformation

Arnold-Chiari malformation

A congenital compression deformity of the lower brain, which is characterised by herniation of the cerebellar tonsils and distal medulla oblongata through the foramen magnum into the spinal canal. The Arnold-Chiari malformation is accompanied by compression of the 4th ventricle and firm adhesions at the cisterna magna.

Arnold-Chiari malformation

Neurology A congenital compression deformity of the 'lower brain' characterized by herniation of the cerebellar tonsils and distal medulla oblongata through the foramen magnum into the spinal canal; ACM is accompanied by compression of the 4th ventricle and firm adhesions at the cisterna magna

Ar·nold-Chi·a·ri mal·for·ma·tion

(ahr'nŏld kē-ah'rē mal'fōr-mā'shŭn)
Deformity of posterior cranial fossa structures caused by tethering of the spinal cord with caudad traction and displacement of the rhombencephalon; may be accompanied by spina bifida and associated anomalies such as meningomyelocele; weak evidence of autosomal recessive inheritance.

Arnold,

Julius, German pathologist, 1835-1915.
Arnold bodies - small portions or minute fragments of erythrocytes.
Arnold-Chiari deformity - Synonym(s): Arnold-Chiari malformation
Arnold-Chiari malformation - malformed posterior fossa structures. Synonym(s): Arnold-Chiari deformity; Arnold-Chiari syndrome; cerebellomedullary malformation syndrome
Arnold-Chiari syndrome - Synonym(s): Arnold-Chiari malformation

Chiari,

Hans, German pathologist, 1851-1916.
Arnold-Chiari deformity - Synonym(s): Arnold-Chiari malformation
Arnold-Chiari malformation - see under Arnold, Julius
Arnold-Chiari syndrome - Synonym(s): Arnold-Chiari malformation
Budd-Chiari syndrome - Synonym(s): Chiari syndrome
Chiari disease - Synonym(s): Chiari syndrome
Chiari net - abnormal fibrous or lacelike strands in the right atrium.
Chiari syndrome - thrombosis of the hepatic vein with great enlargement of the liver and extensive development of collateral vessels, intractable ascites, and severe portal hypertension. Synonym(s): Budd-Chiari syndrome; Budd syndrome; Chiari-Budd syndrome; Chiari disease; Rokitansky disease (2)
Chiari-Budd syndrome - Synonym(s): Chiari syndrome
Chiari II syndrome - elongation of medulla and cerebellar tonsils and vermis with displacement through the foramen magnum into the upper spinal canal.

Arnold-Chiari malformation

a congenital anomaly in which the cerebellum and medulla oblongata protrude down into the cervical spinal canal through the foramen magnum; it is almost always associated with meningomyelocele, spina bifida and hydrocephalus. Recorded in calves, sheep and dogs.
References in periodicals archive ?
The Ann Conroy Trust, based in Dunchurch, near Rugby, provides support for sufferers of Arnold Chiari malformation and syringomyelia which cause disruption of spinal fluid around the brain.
Becky was diagnosed with the rare Arnold Chiari Malformation - a defect where the brain is too big for the skull.