Professional
Technical
IVT
trigonocephaly
Pronunciation: try-GON-oh-sef-ah-lee
A triangular forehead deformity caused by premature fusion of the metopic suture.
Full Definition
Trigonocephaly is a craniofacial malformation characterized by a triangular-shaped forehead with a prominent midline ridge. It results from premature fusion of the metopic suture, which normally closes between 9 months and 2 years of age. The condition creates a keel-shaped forehead with hypotelorism (closely spaced eyes) and temporal narrowing. Surgical correction involves frontal bone reshaping and advancement to normalize forehead contour and orbital spacing.
Usage
Usage note: Capitalize when referring to specific syndrome variants: Trigonocephaly-associated syndrome.
In Context
- "The patient presented with characteristic trigonocephaly and associated hypotelorism." — Clinical assessment
- "Fronto-orbital advancement was planned to correct the trigonocephaly." — Surgical planning note
Also known as
metopic synostosis
Don't confuse with
scaphocephaly
oxycephaly