Medulloblastoma s/p craniotomy, chemotherapy, and radiation therapy Off therapy evaluation There are postsurgical changes in posterior cranial fossa with encephalomalacia in the left cerebellum related to previous tumor resection. Gliosis in right frontal lobe correlating with a previous ventriculostomy tract is unchanged. There is unchanged prominence at the posterior edge of the foramen magnum and posterior arch of C1, which effaces the posterior thecal sac and mildly indents the cervical cord at the C1-C2 level. From posteriorly. All these findings are unchanged in appearance. The distal right middle cerebral artery in the sylvian fissure appears prominent, but this was also seen on prior study. There is no enhancing abnormality intracranially.The syrinx well-seen on study from 7/10/2008 is resolved, as noted on more recent studies There is no evidence of new spinal cord signal abnormality or suspicious enhancing lesion. No spinal canal or foraminal stenosis. Segmentation anomaly at C2 and C3 levels again incidentally noted. No suspicious osseous lesions.
1. Postsurgical changes in the posterior fossa without evidence of tumor recurrence.2. No evidence of drop metastases in the spine. 