This analysis from China involved 50 enhanced CT datasets to reconstruct the skull, internal carotid artery and the internal jugular vein. The anatomical routes of these vessels were related to the styloid process, height of the pterygoid plates, distance from the pterygoid processes and the most prominent part of the zygomatic arch. The distances from the pterygoid processes to the internal carotid artery were 31mm and 34mm inferiorly and superiorly and 51mm from the zygomatic arch to the medial pterygoid plate. Head posture was noted to have an effect.

Surgical safety distances in the infratemporal fossa; three-dimensional measurement study.
Guo YX, Sun ZP, Liu XJ, Bhandari K, Guo CB.
INTERNATIONAL JOURNAL OF ORAL AND MAXILLOFACIAL SURGERY
2015;44:555-61.
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Stuart Clark

Manchester Royal Infirmary, Manchester, UK.

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