hydromyelocele

hy·dro·my·el·o·cele

(hī'drō-mī-el'ō-sēl),
Protrusion of a portion of cord, thinned out into a sac distended with cerebrospinal fluid, through a spina bifida.
[hydro- + G. myelos, marrow, + kēlē, tumor, hernia]

hy·dro·my·e·lo·cele

(hī'drō-mī'ĕ-lō-sēl)
Protrusion of a portion of the spinal cord, thinned out into a sac distended with cerebrospinal fluid, through a congenital defect in the vertebral column, spina bifida.
[hydro- + G. myelos, marrow, + kēlē, tumor, hernia]

hydromyelocele

(hī″drō-mī-ĕl′ō-sēl) [″ + ″ + kele, tumor, swelling]
The protrusion of a sac with cerebrospinal fluid through a defect in a wall of the spinal canal.