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A unique variation of a four-bellied digastric muscle named “real quadrigastric muscle”: a case report and literature review
Affiliations- Department of Anatomy, Histology and Embryology, Medical University of Sofia, Bulgaria
- Department of Neurology, Tulane University School of Medicine, New Orleans, Louisiana, United States
- Department of Health Policy and Management, Medical University of Sofia, Bulgaria
- Department of Orthopaedics and Traumatology, University Hospital Queen Giovanna – ISUL, Medical University of Sofia, Bulgaria
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Abstract
From a topographical standpoint, the digastric muscle is key to the formation of
several triangles of the neck, which are of the utmost clinical significance. Herein,
we present a previously unrecognised variation of the digastric muscle: a quadrigastric
muscle with two accessory bellies originating from the body and angle of
the mandible and inserting to the intermediate tendon. Three new triangles are
demarcated between the four bellies of the aberrant muscle. Detailed knowledge
of variations of the digastric muscle, changing the borders and relationships of
the topographic triangles, is paramount for radiologists and surgeons operating
on the anterior region of the neck.
Abstract
From a topographical standpoint, the digastric muscle is key to the formation of
several triangles of the neck, which are of the utmost clinical significance. Herein,
we present a previously unrecognised variation of the digastric muscle: a quadrigastric
muscle with two accessory bellies originating from the body and angle of
the mandible and inserting to the intermediate tendon. Three new triangles are
demarcated between the four bellies of the aberrant muscle. Detailed knowledge
of variations of the digastric muscle, changing the borders and relationships of
the topographic triangles, is paramount for radiologists and surgeons operating
on the anterior region of the neck.
Keywords
neck topography, novel triangles, clinical significance
About this articleTitle
A unique variation of a four-bellied digastric muscle named “real quadrigastric muscle”: a case report and literature review
Journal
Issue
Article type
Case report
Pages
735-739
Published online
2022-07-08
Page views
1020
Article views/downloads
540
DOI
Pubmed
Bibliographic record
Folia Morphol 2023;82(3):735-739.
Keywords
neck topography
novel triangles
clinical significance
Authors
B. Landzhov
L. Gaydarski
R. S. Tubbs
V. Kirkov
G. P. Georgiev
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