Low grade astrocytoma of the medulla oblongata status post biopsy and chemotherapy. Brain: There is no significant interval change in size of the infiltrative, non-enhancing T2 hyperintense mass within the medulla, which now measures up to 24 mm, . There is no evidence of intracranial hemorrhage, mass, or acute infarct. The brain parenchyma appears unremarkable. The ventricles are stable in size and configuration. There is no midline shift or herniation. The skull and extracranial soft tissues are unchanged. Cervical spine: There is no signal abnormality in the spinal cord. There is no evidence of tumor within the cervical spine. There is unchanged straightening of the vertebral column in the sagittal plane. The vertebral body heights are preserved. The vertebral bone marrow signa is unremarkable. There is no spinal canal narrowing. The paraspinal soft tissues are unremarkable.
No significant change in size of the low grade astrocytoma involving the the medulla oblongata.