In this procedure, the provider removes a portion of skull bone and resects an arteriovenous malformation, AVM, from the infratentorial region of the brain. This region is located below the tentorium cerebella, a fold of dura mater separating the cerebellum from the occipital and temporal lobes. This is surgery for a complex arteriovenous malformation, meaning it is of a size greater than 3 cm with possible deep venous drainage and involvement of portions of the cortex related to areas such as the senses, speech, and language.
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