 Brain MRI:There is a 4.5 cm AP x 3.1 cm craniocaudal x 3.0 cm transverse dimension lesion located in the anterior left middle cranial fossa which is isointense to CSF on all sequences, does not contrast enhance, and does not demonstrate restricted diffusion.The ventricles and sulci are normal in size. The cerebellar tonsils are in normal position. There are no masses, mass effect or midline shift. The pituitary gland is normal in size. There is no evidence for intracranial hemorrhage or acute cerebral, brainstem or cerebellar infarction. No diffusion-weighted abnormalities are identified. There are no extraaxial fluid collections or subdural hematomas. Flow voids are present within the major vessels indicating patency. A small retention cyst versus polyp is noted in the right maxillary sinus. The remaining paranasal sinuses and mastoid air cells are clear. There is no abnormal enhancement within the brain. Complete spine MRI:Small Schmorl's nodes are noted involving the endplates at several lower thoracic levels extending from T8/9 through T12/L1. Only 2 of the associated vertebral bodies demonstrate minimal anterior wedge deformity.There are no osseous deformities or stenoses.Alignment is anatomic. There are no fractures or subluxations. The marrow signal is benign. The cord is normal in signal. The cervicomedullary junction is normal. The cerebellar tonsils are in normal position. The conus terminates at L1/2 and is normal in signal characteristics as well as morphology. There is no fat intensity within the filum. Upon prone maneuvering, the conus translates anteriorly.The visualized paraspinal contents are unremarkable. There is no abnormal enhancement.
1.There is a 4.5 cm AP x 3.1 cm craniocaudal x 3.0 cm transverse dimension arachnoid cyst within the anterior left middle cranial fossa.2.Small Schmorl's nodes are noted involving the endplates at several lower thoracic levels extending from T8/9 through T12/L1. Only 2 of the associated vertebral bodies demonstrate minimal anterior wedge deformity, thus this does not fit the criteria for the diagnosis of Scheuermann's disease.3.No osseous dysplasias or spinal cord abnormalities.