BACKGROUND Pterion is a significant region marked by the junction of frontal bone, parietal bone, squama temporalis and the greater wing of sphenoid and forms the floor of temporal fossa. It is the craniometric point on the lateral side of the skull used by neurosurgeons due to its sutural and anatomical importance. We wanted to evaluate sutural morphology of Pterion in crania of Uttarakhand adults. METHODS This is an observation study conducted in Department of Anatomy, Sri Guru Ram Rai Institute of Medical and Health Science, Dehradun. Sample of 80 skulls were taken of unknown sex. RESULTS 80 skulls of unknown sex were observed. Three types of pterion were noted, the sphenoparietal type, the frontotemporal type and the stellate type. Occurrence of the sphenoparietal type was 81.25% on the right side of the skull and 86.25% on the left, frontotemporal type was found in 13.75% on the right side and 10% on the left side and the stellate type was found to be 5% on the right and 3.75% on the left side of the skulls. The same type of pterion occurred on both the sides in the same individual in 71.25% of the cases. The sphenoparietal type occurred more bilaterally. Epipetric pteria was not found in any of the skulls examined. CONCLUSIONS Sutural morphology of pterion in Uttarakhand region is more or less same as in other regions and populations. The only difference is the lack of Epipetric type of pterion in this region. The data may be used for future reference, when planning for surgical approaches to the cranium through this craniometric point.
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