Cerebellar tonsillar ectopia refers to a brain condition. In this condition, the tonsils near the back of the skull lay low causing herniation.
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The website below has MRI images of cerebellar tonsillar ectopia. http://www.flickr.com/photos/77814749@N00/269706530/in/set-72157594546007849/
developmental cerebellar tonsillar ectopia is a finding that may be associated with exertional headache or headache precipitated by Valsava maneuver or coughing
Cerebellar Tonsillar Ectopia refers to a hernia of the cerebellum in the brain. This condition is also known as a Chiari Malformation. It is corrected through a surgical process to decompress the brain.
at the base of the scull at the back is tonsills that space can become crowded and the tonsills lie low ,
It may be a normal finding, depending on the clinical history. It may also represent a congenital disorder or, something worse, like an intracranial mass or edema. The clinical history is important. If the radiologist though the ectopia was an important diagnostic clue, more emphasis would be placed with recommendations.
Ectopia lentis is the medical term for dislocation of the lens of the eye.
Middle cerebellar peduncle
It is the cerebellar vermis.
It's the middle cerebellar peduncle.As for superior cerebellar and inferior cerebellar peduncles, they are both contain afferent and efferent fibres.
purkinje cells
Superior cerebellar peduncle (it's also the most medial of the 3 peduncles)