Spina bifida myelomeningocele in 7 month Chinese baby, Xiao Wei. It is a birth defect in which the neural tube does not close completely during the first month of embryonic development. Myelomeningocele is the rarest and most severe of the three main types of spina bifida. It involves a bulge that forms on the baby’s back due to spillage of cerebrospinal fluid as well as the spinal cord itself.
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