In the case report by Satheesha & Soumya (2008), they found only three epipteric bones on the right pterion region in Indian adult skulls.
In conclusion, the knowledge of the pterion types in relation to many brain landmarks may be important for neurosurgical interventions and for clinicians during diagnosis of the lateral skull fractures in emergency situations.
Pterion formation and its variations in the skulls of Northern India.
Epigenetic variation in the Nigerian skull: sutural pattern at the pterion.
To achieve optimum craniotomy where neuronavigation devices are not available, the surgeon then relies on external landmarks, such as the pterion (Oguz et al.
Measurements were taken on both sides of the skull from the pterion to the midpoint of zygoma (MPZ) and to the frontozygomatic suture (FZS) using a Manutan[ digital vernier calipers with an accuracy of 0.
The means and associated standard deviations of the various measurements taken from the pterion are presented in Table I below.
The distance between pterion and mid point of the zygoma in the present study varied significantly among males and females.
The pattern of bone articulation at pterion however can be varied and small epipteric bones may be present.
The Pterion was first classified into three types (sphenoparietal, frontotemporal and stellate) by Broca in 1875.
In present study 40 dry skulls were examined for morphology & variation of the pterion with relation to the 2 bony landmarks.
Morphology of the pterion on both the sides of each skull and the sutural pattern of the pterion was determined.