What condition is characterized by deformation of the skull during development?

The condition characterized by deformation of the skull during development is plagiocephaly. This term specifically refers to an asymmetrical shape of the head due to external forces, often observed in infants who spend significant time lying in one position. The deformation can occur as a result of the baby's position in utero or from consistently lying on one side after birth, leading to flattening of one area of the skull.

This condition is often noted in babies and may require interventions such as repositioning strategies, supervised tummy time, or, in some cases, the use of a cranial orthosis (helmet) to help shape the skull as the child grows. Understanding plagiocephaly is important in pediatric physical therapy and developmental care, as early recognition and management can promote healthy skull development and prevent potential issues related to cranial shape.

The other conditions listed, while they may involve the skull or head in various ways, do not primarily define skull deformation during development in the same manner. Microcephaly relates to a smaller than average head size, hydrocephalus involves the accumulation of cerebrospinal fluid in the brain leading to increased head size, and brachycephaly refers to a specific type of head shape characterized by a broad