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90 Possible Causes for Cerebellar Tonsil Herniation

  • Arnold-Chiari Malformation Type I

    It is characterized by four subtypes: type I consists of cerebellar tonsil herniation, which may be associated with syringohydromyelia, skull base alterations and hydrocephalus[f1000research.com] tonsils and vermis herniate throughout the foramen magnum[ 1 ].[mrmjournal.biomedcentral.com] There are two common types of Arnold-Chiari malformation: type I: herniation of the cerebellar tonsils associated with syringomyelia type II: herniation of the cerebellar[gpnotebook.co.uk]

  • Brain Stem Herniation

    Cerebellar tonsil herniation through the foramen magnum The cerebellar tonsils has been pushed downward to compress the medulla, expected to cause respuratory arrest. e.[kobiljak.msu.edu] English Hernia of cerebellar tonsil into foramen magnum , Upwards herniat of cerebellum , tonsillar herniation (diagnosis) , downward cerebellar herniation , tonsillar herniation[fpnotebook.com] Cerebellar pressure cone Cerebellar tonsil hernia into foramen magnum Cerebral herniation Cerebral herniation tonsillar, into foramen magnum Chiari malformation type I Compression[icd9data.com]

  • Arnold Chiari Malformation

    It is characterized by four subtypes: type I consists of cerebellar tonsil herniation, which may be associated with syringohydromyelia, skull base alterations and hydrocephalus[f1000research.com] There are two common types of Arnold-Chiari malformation: type I: herniation of the cerebellar tonsils associated with syringomyelia type II: herniation of the cerebellar[gpnotebook.co.uk] The results revealed a 7 mm cerebellar tonsils herniation into the foramen magnum and the presence of an irregular cavity in the spinal cord, particularly between C4 and D1[f1000research.com]

  • Orthostatic Syncope

    The most common, Chiari malformation type I (CM-I), is characterized by herniation of the cerebellar tonsils extending at least 3 mm below the plane of the foramen magnum.[kjp.or.kr]

  • Cerebellar Stroke

    herniation of the cerebellar tonsils through the foramen magnum. 3 Diagnosis The initial symptoms of cerebellar infarction or hemorrhage may be nonspecific such as headache[ahajournals.org] In addition, cerebral edema can compress the brain stem causing potentially fatal transtentorial herniation of the superior vermis through the tentorial notch or downward[ahajournals.org]

  • Hydrocephalus

    The pathophysiological hypothesis is that they may alter posterior fossa growth and lead to cerebellar tonsil herniation also without skull base primary involvement.[ncbi.nlm.nih.gov] In the Chiari type I malformation the volume of the posterior fossa is reduced leading to overcrowding and herniation of the cerebellar tonsils and dorsal cerebellum into[neuropathology-web.org] The cerebellar tonsils protrude through the foramen magnum into the spinal canal.[neuropathology-web.org]

  • Psychosis

    It is characterized by four subtypes: type I consists of cerebellar tonsil herniation, which may be associated with syringohydromyelia, skull base alterations and hydrocephalus[f1000research.com] The results revealed a 7 mm cerebellar tonsils herniation into the foramen magnum and the presence of an irregular cavity in the spinal cord, particularly between C4 and D1[f1000research.com] Introduction Arnold-Chiari malformation (ACM) is a congenital brain anomaly characterized by herniation of the cerebellar structures through the foramen magnum.[f1000research.com]

  • Arnold-Chiari Malformation Type 2

    It is characterized by four subtypes: type I consists of cerebellar tonsil herniation, which may be associated with syringohydromyelia, skull base alterations and hydrocephalus[f1000research.com] Cerebellar pressure cone Cerebellar tonsil hernia into foramen magnum Cerebral herniation Cerebral herniation tonsillar, into foramen magnum Chiari malformation type I Compression[icd9data.com] Subsequent magnetic resonance imaging demonstrated cerebellar hemorrhage and progression in the downward herniation of the tonsils.[doi.org]

  • Cerebellar Hemorrhage

    Subsequent magnetic resonance imaging demonstrated cerebellar hemorrhage and progression in the downward herniation of the tonsils.[ncbi.nlm.nih.gov] Patients with Chiari type I malformation require neuroimaging follow up because the downward herniation of the tonsils can progress in association with subsequent pathophysiological[ncbi.nlm.nih.gov] Thirty-two months later, he was readmitted with complaints of occipital, neck, and shoulder pain as well as cerebellar ataxia.[ncbi.nlm.nih.gov]

  • Subarachnoid Hemorrhage

    Usually, the neck is not stiff initially unless the cerebellar tonsils herniate.[merckmanuals.com]

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