Male, 3 years old, history of medulloblastoma status post craniotomy, chemotherapy and stem cell transplant x3. End of therapy evaluation. Brain:Again seen are postoperative findings compatible with prior suboccipital midline craniectomy and mesh placement for tumor resection. No evidence of tumor recurrence is seen in the operative bed. A small region of FLAIR hyperintensity just above the right cerebellar tonsil remains nonenhancing and is less conspicuous than on the prior examination. No new intracranial lesions are seen. The pattern of parenchymal enhancement is within normal limits. No evidence of edema or mass effect is detected. Ventricles are stable in size and morphology showing mild prominence of the atria. Mild periventricular T2 hyperintensity is also unchanged.Spine:The spinal cord, conus and cauda equina show normal signal intensity and morphology. No pathologic intramedullary or leptomeningeal enhancement is seen.Spinal alignment is anatomic. Vertebral body morphology and signal characteristics are within normal limits. No pathologic marrow enhancement is seen.
1.Redemonstration of postoperative findings in the posterior fossa with no evidence of recurrent tumor.2.No evidence of metastatic disease to the spine.