A Study of Interparietal Bone in 105 Human Skulls of Gujarat Population.
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Date
2014-01
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Abstract
Introduction : The squamous portion of the occipital bone consists of two different parts: the upper interparietal and the lower supraoccipital. The interparietal part may remain separated from the supraoccipital by a suture; it is then called the interparietal or Inca bone. Aim : In this study, incidence of interparietal bone has been estimated and compared with the other observations. Methodology : Total 105 cadaveric dry human skulls were examined to determine incidence of interparietal bone. Observations : The skulls which were observed, displayed many variations in the occipital region. In 7 cases, single or multiple separated bones were observed. In 4 cases (3.81%), the lower edge of these additional bones was situated above the external occipital protuberance and such bones could be classified as interparietal bones. In 3 cases (2.86%), the lower edge of these additional bones was much higher (between the lambda region and the highest nuchal line). The later can be classified as preinterparietal. Importance : Knowledge of interparietal bone is important for the radiologists, neurosurgeons, anthropologists, orthopedics and forensic experts to avoid misdiagnosis.
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Keywords
Interparietal bone, Inca bone, Preinterparietal bone, squamous occipital bone
Citation
Shah Mayuri P, Desai Sarzoo G, Gupta Sunita. A Study of Interparietal Bone in 105 Human Skulls of Gujarat Population. GCSMC Journal of Medical Sciences. 2014 Jan-June. 3(1): 28-30.