Pterion
Last edit by Alaric Steinmetz on
The term Pterion refers to a location at the Sutura sphenoparietalis, where the Os frontale, the Os parietale, the Os temporale, and the Os sphenoidale are in close proximity.
Anatomy
The following bony structures are involved in the Pterion:
Os frontale
Os parietale
Ala major ossis sphenoidalis
Pars squamosa ossis temporalis
The exact location of the Pterion is subject to variability[^1].
Clinical Relevance
The Pterion is an important anatomical landmark in neurosurgery. At the Pterion, the pterional craniotomy is performed, giving it its name.
Illustration
