Open AccessA unique variation of a four-bellied digastric muscle named “real quadrigastric muscle”: a case report and literature review
Author(s) -
Boycho Landzhov,
Lyubomir Gaydarski,
R. Shane Tubbs,
Vidin Kirkov,
G Georgiev
Publication year - 2023
Publication title -
folia morphologica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.333
H-Index - 30
eISSN - 1644-3284
pISSN - 0015-5659
DOI - 10.5603/fm.a2022.0063
Subject(s) - digastric muscle , anatomy , neck muscles , mandible (arthropod mouthpart) , medicine , biology , zoology , genus
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.