Macrocephaly is defined as head circumference greater than two standard deviations above the mean, or greater than the 97th percentile, for age, sex, race, and gestation. Macrocephaly affects more than 2- 3% of children. Some children with large head size have their measurement percentiles matched by height and weight, accompanied by normal neurological milestone progression. In other cases, the head size is accelerating out of proportion to the rest of the body and warrants neurosurgical evaluation.
 

Main Guideline
 

Appendix

References

These guidelines are intended solely for the use of healthcare professionals who are licensed to practice medicine. This material is not intended to replace professional medical judgment, prescribing information or consultation with a medical professional. Any health care provider using this material acknowledges full responsibility for the medical care and treatment of patients. All health care providers are solely responsible for confirming the accuracy, timeliness, completeness, appropriateness and helpfulness of this material and making all medical, diagnostic or prescription decisions.

For questions about the guidelines, CLASP [at] Connecticutchildrens.org (email the CLASP team).