| iniencephaly |
a developmental anomaly characterized by enlargement of the foramen magnum and absence of the laminal and spinous processes of the cervical, dorsal, and sometimes lumbar vertebrae, with vertebrae reduced in number and irregularly fused, the brain and much of the spinal cord occupying a single cavity.
Ãâó: www.mercksource.com/pp/us/cns/cns_health_library.j...
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