Compression of brain [G93.5], Reason for Study: ^Reason: chiari malformation, headaches, orbit hemangioma, yearly follow up , please do with csf flow studay History: headaches, chiari46 years Female (DOB:3/29/1970)Reason: chiari malformation, headaches, orbit hemangioma, yearly follow up , please do with csf flow studay History: headaches, chiariPROVIDER/ATTENDING NAME: DAVID M. FRIM SERVICES ANCILLARY MRI BRAINExamination demonstrates postoperative change status post suboccipital craniectomy for Chiari decompression. There is downward herniation of the pointed cerebellar tonsils with resultant effacement of the CSF spaces at the craniocervical junction. CINE phase contrast CSF flow sequence shows maintained bidirectional CSF flow on the anterior aspect of the foramen magnum but not obvious on the posterior aspect. Comparing to prior scan, these findings have not been changed.The ventricles, sulci and cisterns are symmetric and unremarkable. The gray-white matter differentiation is normal. There is no mass, mass effect, edema, midline shift, intra- or extra-axial fluid collection, hemorrhage, or restricted diffusion/acute ischemia. Normal flow voids are identified in the major intracranial vessels. The paranasal sinuses and mastoid air cells are clear.MRI C-SPINEThere is no evidence of syrinx.Spinal cord signal intensity appears to be normal.The spine alignment is anatomic. The vertebral body height is preserved. The bone marrow and end plates demonstrate a normal MR appearance. At the level of C34 and C45, there are diffuse bulging of disc which abut thecal sac, no spinal canal stenosis is seen.At the level of C56, there is broad based central to left disc protrusion which indents thecal sac with minimal to mild left lateral recess stenosis.Above described disc diseases have not shown any interval change since prior scan.
1. Postoperative status of known Chiari malformation, no unusual finding.2. Normal spinal cord signal intensity, in particular, no evidence of syrinx.3. Disc herniation at the level of C56 central to left, unchanged.