Possible Chiari malformation: vertigo and neck pain. There are unchanged mildly low lying cerebellar tonsils, up to 4 mm on the left and 5 mm on the right. However, the cerebellar tonsils display normal rounded morphologies and there is intact cerebrospinal fluid flow across the foramen magnum. The spinal cord appears unremarkable, without evidence of syringohydromyelia. There is degenerative spondylosis in the lower cervical spine, including a disc-osteophyte complexes at C5-6 and C6-7 associated with mild spinal canal and neural foraminal narrowing. There is a left T1-2 extraforaminal perineural cyst that measures up to 15 mm. There is a small eccentric right disc protrusion at L4-5 and a slight disc bulge at L5-S1, but no significant spinal canal or neural foramen stenosis at these levels. There is a partially imaged right adnexal cyst that measures approximately 4 mm in width, with what appears to be a small mural nodule.
1. Unchanged mildly low lying cerebellar tonsils, up to 4 mm on the left and 5 mm on the right. However, the cerebellar tonsils display normal rounded morphologies and there is intact cerebrospinal fluid flow across the foramen magnum. 2. No evidence of syrinx.3. Degenerative spondylosis in the lower cervical spine, including a disc-osteophyte complexes at C5-6 and C6-7 associated with mild spinal canal and neural foraminal narrowing. 4. Left T1-2 extraforaminal perineural cyst that measures up to 15 mm. 5. Partially imaged right adnexal cyst of indeterminate significance. A pelvic ultrasound may be useful for further evaluation.