Microcephaly

**Definition:** A congenital abnormality in which the CEREBRUM is underdeveloped, the fontanels close prematurely, and, as a result, the head is small. (Desk Reference for Neuroscience, 2nd ed.)

**Tree numbers:** - C05.660.207.620 - C10.500.507.400.500 - C16.131.621.207.620 - C16.131.666.507.400.500