Space-occupying Lesions
To this point, all disorders mentioned in association with CM-I have been congenital, but acquired methods of CM-I manifestation exist as well. This category includes both space-occupying lesions and CSF leaks. Space-occupying lesions within the posterior cranial fossa can be caused by a variety of disorders, ranging from brain tumors to hematomas. These can include supratentorial[45] and infratentorial[64] lesions. The multitude of potential spaceoccupying lesions is vast and thus beyond the scope of this review.
Neurosurg Focus. 2011;31(3):e3 © 2011 American Association of Neurological Surgeons
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