metopic ridge
A bony prominence along the forehead caused by premature fusion of the metopic suture.
Full Definition
A metopic ridge is a palpable bony prominence that develops along the midline of the forehead when the metopic suture fuses prematurely, a condition called metopic craniosynostosis. This ridge extends from the nasion (root of the nose) toward the anterior fontanelle and may be associated with trigonocephaly (triangular-shaped forehead). The severity can range from a mild cosmetic ridge to severe deformity affecting orbital development and potentially causing increased intracranial pressure. Surgical correction involves frontoorbital advancement and reshaping of the forehead contour, typically performed within the first year of life for optimal results.
Usage
Usage note: Often associated with trigonocephaly but can occur independently.
In Context
- "Physical examination revealed a prominent metopic ridge with associated hypotelorism." — clinical assessment
- "The metopic ridge was successfully corrected during frontoorbital advancement surgery." — operative report