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Related Experiment Video

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Systematic Assessment of Mammalian Skull Specimens for Dental and Temporomandibular Joint Pathology

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Twenty Intracranial Skull Base Variations in the Same Specimen.

Mitchell Couldwell¹, Arada Chaiyamoon², Juan J Cardona¹

¹Department of Neurosurgery, Tulane University School of Medicine, New Orleans, USA.

|July 10, 2023

Summary

A rare adult skull exhibited 20 bony anatomical variations, including previously undescribed features. This unique specimen offers valuable insights for anatomists and clinicians studying cranial structures.

Keywords:

anatomy cadaver cranium intracranial skull variations

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Area of Science:

Anatomy
Radiology
Paleopathology

Background:

Anatomical variations in human skulls are common.
Multiple co-occurring bony variants are infrequently documented.

Observation:

A single adult skull presented a constellation of 20 distinct bony anatomical variations.
Several variations, such as clival canals and a septated hypoglossal canal, may be previously undescribed.

Findings:

Detailed description of variations including interclinoid bar, middle clinoid process, posterior petroclinoid ligament, pterygoalar plate, anterior clinoid process foramen, septated foramen ovale, shortened superior orbital fissure, and crista muscularis.
The specimen showcases a significant departure from typical cranial morphology.

Implications:

Understanding these skull variations is crucial for accurate interpretation in anatomical studies and clinical practice.
Knowledge of these anomalies aids in surgical planning for intracranial procedures and enhances diagnostic accuracy in cranial imaging.