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Craniosynostosis is a condition in which one or more of the fibrous sutures in a young infant's skull prematurely fuses by turning into bone (ossification), [2] thereby changing the growth pattern of the skull. [3]
The frontal suture is a fibrous joint that divides the two halves of the frontal bone of the skull in infants and children. Typically, it completely fuses between three and nine months of age, with the two halves of the frontal bone being fused together.
Craniosynostosis, a condition in which the sutures of the head (joints between the bones of the skull) prematurely fuse and subsequently alter the shape of the head, is seen in multiple conditions, as listed below. The level of involvement varies by condition and can range from minor, single-suture craniosynostosis to major, multisutural ...
Increased cranial pressure in infants may cause the fontanelles to bulge or the head to begin to enlarge abnormally. [7] It can occur due to: [4] Craniosynostosis – premature fusion of the cranial sutures [8] Encephalitis – swelling (inflammation) of the brain, most often due to infections; Hydrocephalus – a buildup of fluid inside the skull
Fig. 1 Cranial sutures viewed from top of head Fig. 2 Skull deformities associated with single suture synostosis. The bones of the human skull are joined by cranial sutures (see figure 1). The anterior fontanelle is where the metopic, sagittal and coronal sutures meet. Normally the sutures gradually fuse within the first few years after birth.
Craniosynostosis (from cranio, cranium; + syn, together; + ostosis relating to bone) is a condition in which one or more of the fibrous sutures in an infant skull prematurely fuses by turning into bone (ossification).
Acrocephalosyndactyly is a group of congenital conditions characterized by irregular features of the face and skull (craniosynostosis) and hands and feet . [1] Craniosynostosis occurs when the cranial sutures, the fibrous tissue connecting the skull bones, fuse the cranial bones early in development.
In humans, as in other animals, the plates of the cranium fuse with dense fibrous connective tissue as a child approaches adulthood. [2] Children whose cranial plates fuse too early may suffer deformities and brain damage as the skull does not expand properly to accommodate the growing brain, a condition known as craniosynostosis .