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Macrocephaly

Background

Macrocephaly is defined as head circumference more than two standard deviations (SD) above the mean value for a given age and gender.
It has to be differentiated from megalencephaly, which is defined as increase in the size of the brain parenchyma. Head circumference is measured to monitor head growth in infants and children. It is also known as occipitofrontal circumference (OFC) and it denotes the size of the cranium. Macrocephaly can be the first manifestation of various congenital and acquired neurologic conditions or may be just a familial trait.
The images below show an infant with this condition.

A 1-year-old boy with macrocephaly. The image illu

A 1-year-old boy with macrocephaly. The image illustrates the increased head circumference (large head).

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A 1-year-old boy with macrocephaly. The image illu

A 1-year-old boy with macrocephaly. The image illustrates the increased head circumference (large head).

View Media Gallery

A 1-year-old boy with macrocephaly. The image illu

A 1-year-old boy with macrocephaly. The image illustrates the increased head circumference (large head).

View Media Gallery

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