Anatomy (International Journal of Experimental and Clinical Anatomy)
 
Anatomy 2009; 3: 72-74
Received: August 4, 2008; Accepted: November 26, 2008; Published online: April 14, 2009
doi:10.2399/ana.08.025
 
Case Report
 

A complex variation of the digastric muscle: a case report

 

Özdemir Sevinç*, Z. Aslıhan Çetin**, Çağatay Barut***, Bora Büken****, Yasin Arifoğlu*****

 

*Department of Anatomy, School of Medicine, Çanakkale Onsekiz Mart University, Çanakkale, Turkey
**Department of Anatomy, School of Medicine, Düzce University, Düzce, Turkey
***Department of Anatomy, School of Medicine, Zonguldak Karaelmas University, Zonguldak, Turkey (cagbarut@yahoo.com)
****Department of Forensic Science, School of Medicine, Düzce University, Düzce, Turkey
*****Department of Anatomy, İzzet Baysal School of Medicine, Abant İzzet Baysal University, Bolu, Turkey

 
Abstract:
 

The anterior belly of the digastric muscle varies greatly in its shape and size. It is important to know the variations of the digastric muscle, as it is used as a landmark in certain surgical procedures. A complex variation of the digastric muscles was detected during the routine dissection of a 55-year-old male cadaver. The anterior belly of the digastric muscle on the left side had an accessory bundle, which arose from the anterior part of the intermediate tendon and divided into two parts after a 2-cm course. The superior part coursed toward the mylohyoid raphe and fused with the mylohyoid muscles of both sides. The inferior part travelled parallel to the hyoid bone and fused with the right mylohyoid muscle. Another accessory bundle was found between the origin of the anterior belly of the right digastric muscle and the bifurcation site of the aforementioned bundle. This latter accessory bundle had no attachment to the mylohyoid muscle. Knowledge of the variations of the digastric muscles may prevent complications when surgery is performed in the suprahyoid region or when imaging is interpreted for this region.

 
Key words: digastric muscle; anterior belly; variation; intermediate tendon

 

 

Anatomy 2009; 3: 72-74

Anatomy (International Journal of Experimental and Clinical Anatomy),
official publication of the Turkish Society of Anatomy and Clinical Anatomy (TSACA),
is published by Deomed Medical Publishing, Istanbul.

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