Chairi decompression in 2015: vision and hearing issues, a very stiff neck and "constant cracking" in neck. There has been interval evolution of postoperative findings related to Chiari decompression surgery, with no residual pseudomeningocele at the surgical bed. The cerebellum appears unchanged in configuration, with minimal linear hypointense bands extending to the overlying dura, which may represent adhesions. The neo-foramen magnum is patent, with a robust transit of cerebrospinal fluid flow. The spinal cord appears to be normal. There is minimal unchanged multilevel degenerative spondylosis, without significant spinal canal or neural foraminal stenosis. The vertebral body heights are intact. However, there is partial congenital fusion of the C6 and C7 vertebrae. The bone marrow appears to be unremarkable.
Expected interval evolution of postoperative findings related to Chiari decompression surgery. No evidence of syrinx.