Variations of the digastric muscle and accessory bellies - A study of gross anatomic dissections

Ortug, Gursel; Sipahi, B.; Ortuğ, Alpen; İpsalalı, Hasan Orkun

doi:10.1016/j.morpho.2019.09.189

Cited by 4 publications

(2 citation statements)

References 22 publications

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“…Some differences exist between the classification systems proposed, in respect to the basic criteria used -origin and insertion, presence of additional slips or additional heads. Most commonly these muscle variations exist in the submental area and include additional slips and heads of variable directions, some of them crossing the midline, others -fusing with mylohyoid muscle [3,6,7,10]. The variation reported by us corresponds to the rare Type 6 in Mori's classification -additional slips to the mandible, with a frequency of 1.1% [5].…”

Section: Discussionmentioning

confidence: 58%

A Rare Variation of the Digastric Muscle Anterior Belly Related to False Submandibular Triangle

Gradev¹,

Vulova²,

Jelev³

et al. 2022

AMA

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In the case reported, an interesting variation of the left digastric muscle of an adult female cadaver was found during routine anatomical dissection of the anterior neck region. Additionally to the usual anterior and posterior bellies, there was a well-developed aberrant muscular slip starting from the digastric anterior belly and inserting to the inner surface of the mandibular angle in a manner nearly parallel to the posterior belly. This additional slip, together with the anterior belly and mandibular base enclosed a small but false submandibular triangle. The submandibular gland was displaced slightly posteriorly with the submandibular duct passing between the aberrant slip and the usual posterior belly.The reported muscle variation may have importance in open surgical procedures in the neck region. Our case report provides an additional understanding of digastric muscle variations and their clinical significance.

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Section: Discussionmentioning

confidence: 58%

A Rare Variation of the Digastric Muscle Anterior Belly Related to False Submandibular Triangle

Gradev¹,

Vulova²,

Jelev³

et al. 2022

AMA

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“…There have been reported cases of anatomic variation of the digastric muscle 3 . There have been many reports of an accessory anterior belly and fewer reports of an accessory posterior belly 4 . There have also been documents of an absent anterior belly 5 .…”

Section: Introductionmentioning

confidence: 99%

Absent Posterior Belly of Digastric Muscle

et al. 2020

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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.

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Variations and thicknesses of anterior belly of the digastric muscle: an ultrasonographic study

Ünsal,

Göksel,

Çakır Karabaş

et al. 2023

Eur Arch Otorhinolaryngol

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Variations of the digastric muscle and accessory bellies - A study of gross anatomic dissections

Cited by 4 publications

References 22 publications

A Rare Variation of the Digastric Muscle Anterior Belly Related to False Submandibular Triangle

A Rare Variation of the Digastric Muscle Anterior Belly Related to False Submandibular Triangle

Absent Posterior Belly of Digastric Muscle

Variations and thicknesses of anterior belly of the digastric muscle: an ultrasonographic study

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