syringoencephalomyelia

sy·rin·go·en·ceph·a·lo·my·e·li·a

(sĭ-ring'gō-en-sef'ă-lō-mī-ē'lē-ă),
A tubular cavity involving both brain and spinal cord and etiologically unrelated to vascular insufficiency.
[syringo- + G. enkephalos, brain, + myelos, marrow]

syringoencephalomyelia

(sĭ-rĭng″gō-ĕn-sĕf″ă-lō-mī-ē′lē-ă) [″ + enkephalos, brain, + myelos, marrow]
A condition of cavities in the brain and spinal cord.