Metopic ridge
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A metopic ridge refers to a variation in skull shape, characterized by a midline forehead ridge, which may occur either due to the physiological closure of the metopic suture or as a result of craniosynostosis of this suture 1-3. It is essential to differentiate between the two conditions because metopic ridge due to physiological closure needs no treatment, and metopic craniosynostosis with trigonocephaly may require surgical treatment 1-3.