Аннотация:Little is known about perioperative cognitive performance in patients with meningiomas. Existing evidence suggests such patients have mild to moderate cognitive deficits preoperatively, and deficit patterns depend on which brain structures are compressed by the tumor. This study compares the pre- and postoperative cognitive performance of seven patients with meningiomas based on formal assessment of their language, verbal memory, and visuospatial processing. These data were analyzed in relation to the brain topography of the pathological tissue extracted from structural MR images. Overall, only one patient showed mild language comprehension impairment preoperatively with postoperative improvement. Otherwise, the results showed two patterns of postoperative changes. One was the improvement of visuospatial functioning, which did not seem to be related to a specific location of the meningioma. The other was a worsening of verbal memory, which might be related to specific postoperative lesions or edema in the left inferior frontal and left parietal-occipital areas. However, more data are needed to support these suggestions.