Headaches, fainting episodes, evaluate for Chiari malformation There is crowding of the foramen magnum. The cerebellar tonsils demonstrate predominantly round morphology, slightly more peg-like on the left, and protrude up to 7 mm below the foramen magnum. CSF flow is limited along the dorsal aspect of the upper cervical cord at the level of the foramen magnum. There is no evidence of brainstem compression or evidence of syringomyelia. The sagittal images include the inferior endplate of the T3 vertebral body. There is straightening of the normal cervical lordosis. The vertebral column alignment is within normal limits. The vertebral body heights are preserved. The vertebral bone marrow signal is unremarkable. There is mild degenerative spondylosis of the cervical spine worst at C5-6 where there is intervertebral disc height loss. There is no significant spinal canal stenosis. The spinal cord displays normal signal and morphology. The prevertebral soft tissues are unremarkable.C2-3: No significant spinal canal stenosis or neural foraminal narrowing. C3-4: No significant spinal canal stenosis or neural foraminal narrowing.C4-5: No significant spinal canal stenosis or neural foraminal narrowing. C5-6: Disc osteophyte complex with indentation of the ventral thecal sac, but no significant spinal canal stenosis or neural foraminal narrowing. C6-7: No significant spinal canal stenosis or neural foraminal narrowing.C7-T1: No significant spinal canal stenosis or neural foraminal narrowing.Cystic lesions in several neural foramina of the lower cervical spine are most consistent with nerve root sleeve cysts.
1. Crowding of the foramen magnum with cerebellar ectopia and compromised dorsal CSF flow at this level, as described above, suggestive of Chiari I malformation.2. No evidence of syringomyelia or brainstem compression.3. Mild degenerative spondylosis of the cervical spine as described above. 