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Chiari Malformation Type I with Syringomyelia MeSH Supplementary Concept Data 2025


MeSH Supplementary
Chiari Malformation Type I with Syringomyelia
Unique ID
C566133
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/C566133
Entry Term(s)
CM1 with Syringomyelia
Registry Numbers
0
Heading Mapped to
*Arnold-Chiari Malformation
*Syringomyelia
Frequency
51
Note
An autosomal dominant type of Chiari malformation characterized by the protrusion of the cerebellar tonsils through the FORAMEN MAGNUM, defined radiologically as tonsillar descent of 5 mm or more. CM1 is associated with SYRINGOMYELIA in up to 80% of cases. May be asymptomatic or can cause headaches, ocular disturbances, otoneurologic disturbances, lower cranial nerve signs, CEREBELLAR ATAXIA, or MUSCLE SPASTICITY. Onset of symptoms is usually in the third decade of life. OMIM: 118420
Date of Entry
2012/11/05
Revision Date
2015/08/18
Chiari Malformation Type I with Syringomyelia Preferred
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