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Cross-over type of supernumerary digastric muscle
Affiliations- Institute of Anatomy, Faculty of Medicine, University of Ljubljana, Slovenia
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Abstract
A cross-over type asymmetric anomaly of the anterior belly of the right digastric muscle was observed during a cadaveric dissection of the submental region. Three irregularly-shaped supernumerary muscle bundles were found between the anterior bellies of the digastric muscles. Although the anomalies of the digastric muscles are often observed, this complicated pattern has not been previously reported. Our findings and previous reports illustrate the morphogenetic complexity of the anterior belly of the digastric muscle, and their potential importance in confounding clinical evaluation or complicating surgical procedures in the submental region.
Abstract
A cross-over type asymmetric anomaly of the anterior belly of the right digastric muscle was observed during a cadaveric dissection of the submental region. Three irregularly-shaped supernumerary muscle bundles were found between the anterior bellies of the digastric muscles. Although the anomalies of the digastric muscles are often observed, this complicated pattern has not been previously reported. Our findings and previous reports illustrate the morphogenetic complexity of the anterior belly of the digastric muscle, and their potential importance in confounding clinical evaluation or complicating surgical procedures in the submental region.
Keywords
anatomic variant; anterior belly; asymmetry; submental region; human gross anatomy
About this articleTitle
Cross-over type of supernumerary digastric muscle
Journal
Issue
Article type
Case report
Pages
647-650
Published online
2018-12-05
Page views
1005
Article views/downloads
1070
DOI
Pubmed
Bibliographic record
Folia Morphol 2019;78(3):647-650.
Keywords
anatomic variant
anterior belly
asymmetry
submental region
human gross anatomy
Authors
Ž. Šink
N. Umek
E. Cvetko
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