Neuromuscular Disorders
Congenital muscular dystrophy: merosin deficient form
Dec. 25, 2023
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Anencephaly
Anencephaly is a fatal neural tube defect in which the cerebral hemispheres do not develop, although some highly disorganized brainstem tissue is typically present. Prenatal screening for neural tube defects has significantly decreased the number of births of infants with anencephaly, and prevention of maternal folate deficiency (now known to be an etiologic factor) is expected to reduce the incidence even further. All women of childbearing age should take folate supplements to reduce the risk of this anomaly. (Photograph by Ed Uthman MD, January 13, 2002. Public domain.)