About The Medical Condition Type IV Arnold-Chiari Malformation
Find the definition of the medical term Type IV Arnold-Chiari Malformation. Type IV Arnold-Chiari Malformation defined and explained for easy understanding at the Medical Conditions from ClusterMed.info.
Type IV Arnold-Chiari Malformation
Type IV Arnold-Chiari Malformation Medical Condition |
---|
What's The Definition Of The Medical Condition Type IV Arnold-Chiari Malformation?
A group of congenital malformations involving the brainstem, cerebellum, upper spinal cord, and surrounding bony structures. Type II is the most common, and features compression of the medulla and cerebellar tonsils into the upper cervical spinal canal and an associated MENINGOMYELOCELE. Type I features similar, but less severe malformations and is without an associated meningomyelocele. Type III has the features of type II with an additional herniation of the entire cerebellum through the bony defect involving the foramen magnum, forming an ENCEPHALOCELE. Type IV is a form a cerebellar hypoplasia. Clinical manifestations of types I-III include TORTICOLLIS; opisthotonus; HEADACHE; VERTIGO; VOCAL CORD PARALYSIS; APNEA; NYSTAGMUS; swallowing difficulties; and ATAXIA. (From Menkes, Textbook of Child Neurology, 5th ed, p261; Davis, Textbook of Neuropathology, 2nd ed, pp236-46)
|
More Medical Conditions
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
Medical Conditions Definitions Of The Day
- Line Management, Product ‐ Management control systems for structuring health care delivery…
- Hepatic Duct ‐ Predominantly extrahepatic bile duct which is formed by the junction…
- Nonacceptors ‐ The seeking and acceptance by patients of…
- Pregnant Mares Serum ‐ Polypeptide hormones secreted in pregnant mares at the junction…
- Mutagenesis, Viral Insertional ‐ Mutagenesis where the mutation is caused by the introduction…
- Information System, Radiologic ‐ Information systems, usually computer-assisted, designed to store,…
- Epidermolysis Bullosa ‐ Group of genetically determined disorders characterized by the…
- Ketosuccinates ‐ Salts and esters of…
- Kyasanur Forest disease virus ‐ A subgroup of the genus FLAVIVIRUS that causes encephalitis and…
- DNA Nucleotidylexotransferase ‐ A non-template-directed DNA polymerase normally found in vertebrate…