 MRI BRAIN: There is enhancement and mild thickening involving the orbital, canalicular, and perhaps the prechiasmatic segments of the left optic nerve, which measures up to approximately 5 mm in width. The ventricles and sulci are within normal limits. There is no midline shift or mass effect. There are no areas of abnormal signal or pathological enhancement. There is no evidence of acute infarction. There are secretions and/or mucosal thickening in the right maxillary sinus. There are normal flow-voids in the major intracranial vascular structures. MRI LUMBAR SPINE: There is diffuse enhancement and nodularity in the skin and subcutaneous tissues in the lower back and buttock region. The lumbar spine is normal alignment. The vertebral body and disc heights are well-maintained. There is a 10 mm diameter right sacral perineural cyst. There is also mild sacral lipomatosis. The distal spinal cord and conus are within normal limits with the conus terminating at the mid L2 level. There is no significant disc bulge, herniation, spinal canal or neural foramen stenosis. There is mild urinary bladder distension.
1. An apparent lesion involving the left optic nerve that measures may represent an optic glioma. However, a dedicated orbit MRI may be useful for further evaluation.2. Diffuse enhancement and nodularity in the skin and subcutaneous tissues in the lower back and buttock region is compatible with superficial neurofibromatosis.I personally reviewed the Images and/or procedure with the Resident/Fellow and agree with this report.