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Doctor insights on: Cerebellar Ectopia

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Diagnosed w/cerebellar atrophy from MRI due to balance/memory issues.What tests can I expect next, and what are they looking for?44yr.Old non-drinker

Diagnosed w/cerebellar atrophy from  MRI due to balance/memory issues.What tests can I expect next, and what are they looking for?44yr.Old non-drinker

Differential for CA: The differential diagnosis of later onset cerebellar atrophy can be hereditary, acquired, or degenerative. The acquired forms can be arrested or even treated and thus should be investigated. The investigation usually includes blood and possibly 24 hour urine evaluation. Sometimes the blood work is sent off to a specialty lab especially when the hereditary/paraneoplastic forms are being sought. ...Read more

Cerebellum (Definition)

An area in the back of the brain that helps coordinate movement, speech, and eye movements. It has connections to the frontal lobes also and may play a role in helping you ...Read more


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Would "benign cerebellar ectopia" on MRI cause frequent headaches?

Would "benign cerebellar ectopia" on MRI cause frequent headaches?

Tough question: Your question begs an age old question that neurologists and radiologists are forever dealing with- When is "benign" really BENIGN when it comes to contribution to or causation of headaches. That's sometimes not very easy to answer but there are ways to get information that could support a point of view. If you'd like to chat: www.healthtap.com/dr-drsaghafi Use Key Code: PDXFNR for appointment. ...Read more

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If my cerebellar tonsils extend 4 to 5 mm below the foramem magnum and my CSF flow is normal, do I have Chiari or benign cerebellar ectopia?

If my cerebellar tonsils extend 4 to 5 mm below the foramem magnum and my CSF flow is normal, do I have Chiari or benign cerebellar ectopia?

Ectopia: Probably ectopia. Tonsils usually greater than 5mm below magnum for chiari. However would make sure your images were read by a neuroradiologist. Morphology/shape of the tonsils also important. Have seen borderline/mild cases missed . I suggest caution, there are other reasons why tonsils could be low such as CSF leak etc. ...Read more

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Had brain MRI for constellation of symptoms, came back normal. To me looks like increased CSF on scan, poss cerebellar ectopia (chiari) easy to miss?

Had brain MRI for constellation of symptoms, came back normal. To me looks like increased CSF on scan, poss cerebellar ectopia (chiari) easy to miss?

Possibly: There are specific criteria that radiologists use to assess for cerebellar tonsillar ectopia. There are many normal variants of brain anatomy that may look abnormal to the untrained observer. If you are concerned about that specific issue, your doctor that referred you for the MRI can have the radiologist review the exam. ...Read more

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What exactly is cerebellar tonsillar ectopia?

What exactly is cerebellar tonsillar ectopia?

Tonsillar ectopia: The cerebellum is at the lower back of your brain, and is mainly responsible for motor coordination. The tonsils are at the midline of your cerebellum and sometimes they can extend a bit lower than normal. That's called tonsillar ectopia. They may be asymptomatic, or they could cause symptoms like headache, pain, and other neurologic symptoms. ...Read more

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Mild cerebellar tonsillar ectopia 5 mm?

Chiari malformation: The definition for chiari malformation is the presence of cerbellar ectopia of greater than 3 mm below the foramen magnum. Thus you fulfill at least part of the criteria for chiari 1 malformation. The key is the presence of symptoms. If present, then phase-contrast mr flow studieshave a role in determining whether symptomatic chairi malformation patients may benefit from surgical intervention. ...Read more

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Hi doctors, was just wondering what is cerebellar tonsillar ectopia?

Hi doctors, was just wondering what is cerebellar tonsillar ectopia?

Chiari 1: Tonsillar ectopia, slight descent of the cerebellar tonsils and Chiari I malformations, disorders observed in older children and adults and are believed to be an acquired form of the Chiari malformations. This entity is different from the other Chiari malformations in that hydrocephalus plays no role in its evolution ...Read more

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On an MRI report, what does mild inferior cerebellar tonsillar ectopia mean?

Possible Chiari: This statement means that a portion of your cerebellum (the cerebellar tonsils) is sitting lower down than is normal. If your cerebellar tonsils are low lying they can sit in an opening in your skull and get pushed on by your skull. This condition is called a Chiari I malformation. it can also cause compression on the brainstem. People whose cerebellar tonsils sit 12 mm low tend to have symptoms. ...Read more