The Chiari I malformation, also known as the Arnold-Chiari malformation, is a relatively common syndrome caused by displacement of the cerebellar tonsils below the level of the foramen magnum. Associated with the Chiari malformation may be hydrocephalus, spina bifida, and syringomyelia.he type I Chiari malformation consists of caudal displacement of the cerebellar tonsils at least 3 mm into the upper cervical spinal canal. This type of herniation may be asymptomatic. The type II Chiari has a meningomyelocele (spinal opening). Type III has an encephalocele.
Silverdale is a census-designated place (CDP) in Kitsap County, Washington, in the United States. The population was 19,204 at the 2010 census. Despite many attempts at incorporation, Silverdale remains an unincorporated community.
Sponsored Topics. Metaline Falls is a town in Pend Oreille County, Washington, United States. The population was 238 at the 2010 census. Metaline Falls was discovered by natives 12,000 years ago. Eventually by fur traders came in 1810.