A birth disorder primarily evidenced only by microcephaly. The face, while normal-sized, is accompanied by a small cranial cavity with a low, receding forehead and a flat back of the head. Mental lagging and limb spasticity present as neurological defects.

PRIMARY MICROCEPHALY: "It was the opinion of the pediatric surgeon that Lilly was suffering from primary microcephaly."
Cite this page: N., Pam M.S., "PRIMARY MICROCEPHALY," in, April 28, 2013, (accessed September 23, 2021).