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(Pediatrics in Review. 2006;27:473-476.)
© 2006 American Academy of Pediatrics

In Brief

Abnormalities in Head Size

The first 300 words of the full text of this article appear below.

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Measuring the head circumference is an important element of the pediatric physical examination, especially in the first 3 years after birth, when brain growth is maximal. A series of measurements over time is more instructive than a single measurement, which can, however, still provide useful information. For example, an abnormal head circumference at birth is a clue to an early prenatal effect. A head circumference more than 3 standard deviations below or above the mean almost always is associated with some degree of neurologic impairment. Measurements are plotted on standardized charts. The latest Centers for Disease Control and Prevention growth charts feature curves for 3rd and 97th percentiles, which are important cut-offs in the measurement of head circumference. Special charts are available for children who have conditions associated . . . [Full Text of this Article]

Oscar H. Purugganan, MD, MPH
Children’s Evaluation & Rehabilitation Center Albert Einstein College of Medicine Bronx, NY

Henry M. Adam, MD, Editor, In Brief

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