open access

Vol 75, No 1 (2016)
CASE REPORTS
Published online: 2015-09-08
Submitted: 2015-02-25
Accepted: 2015-04-24
Get Citation

Symmetrical anatomical variant of the anterior belly of the digastric muscle: clinical implicat

B. Buffoli, D. Lancini, M. Ferrari, F. Belotti, P. Nicolai, M. Tschabitscher, R. Rezzani, L. F. Rodella
DOI: 10.5603/FM.a2015.0077
·
Pubmed: 26365851
·
Folia Morphol 2016;75(1):112-116.

open access

Vol 75, No 1 (2016)
CASE REPORTS
Published online: 2015-09-08
Submitted: 2015-02-25
Accepted: 2015-04-24

Abstract

The digastric muscle is an important surgical landmark. Several anatomical variants of the digastric muscle are reported in literature and, in particular, the presence of accessory anterior bellies of the muscle is not uncommon. Here, an unreported symmetrical variant of the digastric muscle was found during a dissection of the suprahyoid region. The dissection showed digastric muscles with an accessory anterior belly, which originated from the anterior belly of muscles in proximity and anteriorly to the intermediate tendon. The accessory bellies were fused together on the midline and were attached with a unique tendon to the inner surface of the mental symphysis. These muscles completely filled the submental triangle. This unreported anatomical variant could be considered an additional contribution to description of the anatomical variants of the digastric muscle, with several implications in head and neck pathology, diagnosis and surgery.  

Abstract

The digastric muscle is an important surgical landmark. Several anatomical variants of the digastric muscle are reported in literature and, in particular, the presence of accessory anterior bellies of the muscle is not uncommon. Here, an unreported symmetrical variant of the digastric muscle was found during a dissection of the suprahyoid region. The dissection showed digastric muscles with an accessory anterior belly, which originated from the anterior belly of muscles in proximity and anteriorly to the intermediate tendon. The accessory bellies were fused together on the midline and were attached with a unique tendon to the inner surface of the mental symphysis. These muscles completely filled the submental triangle. This unreported anatomical variant could be considered an additional contribution to description of the anatomical variants of the digastric muscle, with several implications in head and neck pathology, diagnosis and surgery.  

Get Citation

Keywords

anatomical variant, digastric muscle, suprahyoid region, dissection, gross anatomy

About this article
Title

Symmetrical anatomical variant of the anterior belly of the digastric muscle: clinical implicat

Journal

Folia Morphologica

Issue

Vol 75, No 1 (2016)

Pages

112-116

Published online

2015-09-08

DOI

10.5603/FM.a2015.0077

Pubmed

26365851

Bibliographic record

Folia Morphol 2016;75(1):112-116.

Keywords

anatomical variant
digastric muscle
suprahyoid region
dissection
gross anatomy

Authors

B. Buffoli
D. Lancini
M. Ferrari
F. Belotti
P. Nicolai
M. Tschabitscher
R. Rezzani
L. F. Rodella

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