Compressive arachnoid cyst - middle cranial fossa
Loading Stack -
0 images remaining
There is a large extra-axial cystic lesion of CSF signal on all sequences is noted in the left middle cerebral fossa, extending to the fronto-insular region with thinning of the inner table of the skull, compressing the temporal, and frontal lobes with a mass effect on the midline structures.
MRI features of a large arachnoid cyst type III according to Galassi classification of middle cranial fossa arachnoid cysts.