Female, 47 years old, with cerebellar lesion, preoperative planning examination. A cystic and solid lesion with irregular enhancement is redemonstrated in the left cerebellum showing no significant change from the immediate prior examination. This lesion causes substantial edema within the left cerebellum and causes herniation of a small portion of the left cerebellar hemisphere through the occipital craniectomy defect. The fourth ventricle remains partially effaced. Also redemonstrated are enhancing lesions within the right parietal lobe and the right cerebellum, without significant interval change.
Preoperative examination for surgical guidance redemonstrates a large cystic and solid mass within the left cerebellum, as well as smaller lesions in the right parietal lobe and right cerebellum.