microcephaly_flashcards

Question 1

How is microcephaly defined?

Answer 1

Microcephaly is defined as an occipital-frontal circumference < 2nd centile.

Question 2

What are the causes of microcephaly?

Answer 2

Normal variation (e.g., small child with small head), familial (e.g., parents with small head), congenital infection, perinatal brain injury (e.g., hypoxic ischaemic encephalopathy), fetal alcohol syndrome, syndromes (e.g., Patau), craniosynostosis.