ArticleSurgical and radiologic anatomy : SRA2018
The submental arrowhead variation of the mylohyoid and anterior belly of the digastric muscles.
Article in Surgical and radiologic anatomy : SRA, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- A unique symmetrical variation of the median accessory anterior digastric muscle.Anatomy & cell biology · 2025Article
- Sonographic Anatomy and Imaging of the Extracranial Component of the Hypoglossal Nerve (CNXII).Journal of medical radiation sciences · 2025Review
- Structural analysis of the mylohyoid muscle as a septum dividing the floor of the oral cavity for the purposes of dental implant surgery: variety of muscle attachment positions and ranges of distribution.International journal of implant dentistry · 2023Article
- Anatomical Variations of the Anterior Belly of the Digastric Muscle in Thai Cadavers: A Cross-Sectional Study.Journal of International Society of Preventive & Community DentistryArticle
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Authors and funding
5 authors.
Funding
Abstract
purposeSubmental anatomical variation is of clinical importance with regard to head and neck surgeries. One such anatomical variation is that of additional musculature joining the intermediate tendon of the digastric muscle to the midline of the mylohyoid musculature-a variation which this report refers to, accordingly, as an arrowhead variation. Though the arrowhead variation has been described in several case reports, it has not been subject to cross-sectional study. The purpose of this study is to determine the prevalence of the arrowhead variation.
methodsPrevalence of the arrowhead variation was assessed in 19 cadavers via gross dissection.
resultsTwo of the 19 cadavers (10.5%) were found to have arrowhead variations. The arrowhead variation was found in one male (1:11; 9.1%) and one female (1:8; 12.5%), respectively.
conclusionsThis report demonstrates that the submental arrowhead variation of the anterior digastric and mylohyoid musculature has been reported in isolated case reports since the nineteenth century. This report is the first cross-sectional study of the arrowhead variant, identifying it in approximately one in ten individuals and in both sexes. Therefore, the presence of an arrowhead variation should be regularly considered with regard to diagnosis of submental masses. Likewise, the arrowhead variation should be considered in the preoperative planning of the myriad operations performed in the submental region.
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