| dysraphism | Dysraphia Defective fusion, especially of the neural folds, resulting in status dysraphicus. Origin: dys-+ G. Rhaphe, suture (05 Mar 2000) |
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| spinal dysraphism | Developmental abnormalities of the dorsal median region in the embryo, involving ectoderm, mesoderm, and neuroectoderm in varying degrees. Dysraphism signifies incomplete fusion or malformation of a seam or junction. Spinal dysraphism includes all forms of spina bifida. The open form is called spina bifida cystica and the closed form is spina bifida occulta. (12 Dec 1998) |
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