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Τρίτη 15 Ιουνίου 2021

Absent Posterior Belly of Digastric Muscle

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Objective

Report a unique case of absent posterior belly of digastric muscle, with a literature review and discussion of its clinical importance.

Methods

Present a case report and review the current literature including PUBMED search terms; "absent posterior digastric", "digastric muscle", "posterior belly".

Results

While there were multiple reports of accessory anterior and posterior bellies and absence of anterior belly, there is a paucity of literature on absence of posterior belly of digastric muscle.

Conclusion

To our knowledge, this is the first report of an absent posterior belly of the digastric muscle. The posterior belly of the digastric muscle is an important landmark in neck dissection, and its absence makes knowledge of other anatomic landmarks critically important. Laryngoscope, 131:1501–1502, 2021

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