trigonocephaly

Trigonocephaly is a condition characterized by a triangular, flat head. This occurs due to the premature fusion of the metopic suture, which normally separates the frontal bone into two halves during the first two years of life. This premature closure can lead to a triangular head shape and may be associated with brain damage.12

Craniosynostosis, the broader category to which trigonocephaly belongs, involves the early union of skull vault bones. This fusion restricts the skull's growth in response to the developing brain, potentially resulting in an abnormally small head. Surgical intervention within the first two years of life can help minimize deformities and reduce the risk of complications like intellectual disability and blindness.2