Chinese Journal Of Clinical Anatomy ›› 2018, Vol. 36 ›› Issue (1): 5-9.doi: 10.13418/j.issn.1001-165x.2018.01.002

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Applied anatomy of the endoscopic transoral approach in treatment of the jugular foramen region communicating tumors

WANG Han, WANG Yu-hai   

  1. Wuxi Clinical Medical School,Anhui Medical University,Wuxi  214044,China;Craniocerebral Injury Cure Center of PLA, Department of Neurosurgery, 101st Hospital of PLA, Wuxi 214044, China
  • Received:2017-09-14 Online:2018-01-25 Published:2018-03-06

Abstract:

Objective Study on anatomy of endoscopic transoral approach to jugular foramen, in order to the application of this approach to remove the communicating tumor in jugular foramen region.  Methods With the aid of endoscope,15 cadaveric head specimens were used to simulate transoral approach to jugular foramen. The extracranial and intracranial structures of jugular foramen were observed, the anatomic landmarkers were located and the relevant data measured. Results Transoral approach could reveal extracranial region of jugular foramen well, especially the anterior medial region. The best exposure to the midline region of the brain stem was obtained after removing the bone from the external opening of the hypoglossal canal to the midline of the clivus. The occipital condyle, supracondylar groove and carotid ridge were important anatomical landmarks in this approach. The distance was (14.51±2.30) mm from the anterior edge of the occipital condyle to inferior edge of the external opening of the hypoglossal canal. The distance was (24.11±2.19) mm from anterior edge of the occipital condyle to carotid ridge. The distance was (21.26±2.26) mm from anterior edge of the occipital condyle to the upper edge of the jugular tubercle. Conclusion  This approach is helpful in dealing with the principal part of tumors in the medial region of the jugular foramen.

Key words: Jugular foramen, Endoscope, Communicating tumors, Transoral approach, Applied anatomy