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Clin Anat. 2001 Jul;14(4):282-4.

Entrapment of the lingual nerve due to an ossified pterygospinous ligament.

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  • 1Institute of Anatomy, Clinical Anatomy Division, Westfalian Wilhelms-University of Muenster, Germany.


During a routine dissection course at the University of Muenster (Germany) an unusual course of the lingual nerve was found with entrapment of the nerve between a widely ossified pterygospinous ligament and the medial pterygoid muscle. Furthermore, the nerve's mobility was restricted by a more distal anastomosis with the inferior alveolar nerve. Although incomplete or complete ossification of the pterygospinous ligament is not uncommon, the combination with a medial course of the lingual nerve has not been described before. Besides practical importance for surgeons and anesthetists, the entrapment of the lingual nerve may lead to lingual numbness and pain associated with speech impairment.

Copyright 2001 Wiley-Liss, Inc.

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