A Persistent Metopic Suture: A Case Report

An adult human skull found in a college osteological collection presented with a persistent metopic suture. The metopic suture or frontal suture is noted to be between the two frontal bones extending from the nasion to the bregma. The metopic suture generally fuses between 1 and 8 years of life. If it remains after that time it is known as metopism. Its presence is a normal variant of the cranial sutures. Its presence may be mistaken for a skull fracture and also may be associated with frontal sinus irregularities.