Observation of anomalus triplication of unilateral anterior digastric muscle

Çelik, H. Hamdi; Yılmaz, Engin; Atasever, Alper; Durgun, B; Taner, Doğan

doi:10.1002/ca.980060607

Cited by 8 publications

(4 citation statements)

References 7 publications

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“…18 The anterior belly of the digastric muscle and the mylohyoid muscle develop from the first branchial arch and appear by the fourth week of intrauterine life when the posterior belly originates from the second arch. 14,26 It is generally thought that the anterior belly of the digastric and the mylohyoid muscle derive from the first branchial arch. Because these two muscles intimately develop from a common primordium, it is reasonable to consider supernumerary bundles developing from them.…”

Section: Discussionmentioning

confidence: 99%

The Cause of the Difference in the Submental Region

Ozgur

Gövsa²,

Özgür³

2007

Journal of Craniofacial Surgery

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The aberrant bundles' presence in the anterior belly of the digastric muscle is important in terms of causing asymmetry in the submental region, getting confused with some pathologic cases, radiologic examination, and aesthetic facial surgery. To provide data, aberrant bundles in the submental region were investigated in 30 cadaver heads. During the dissection of the submental region, origin, insertion, shape, and bilaterality of the anterior bellies of the digastric muscles and the aberrant bundles were investigated. The 20 heads with aberrant bundles were classified into two types based on the muscle arrangement: digastric fossa type and crossover type. The aberrant bundles, which did not cross the median line, were classified as being of the digastric fossa type, whereas those that crossed the line were of the crossover type. Fifteen of the heads contained bundles of the unilateral type and five heads contained the crossover type. In three heads, digastric fossa and crossover types coexisted. In this study, a wide range for incidence in the submental region was observed of variations. Some cases were not described in the classification of the previous studies of this muscle. It is also possible that the incidences may vary as a result of the ethnic differences of the populations studied. Bilaterality was frequently observed in this study. Anatomic variations of the anterior bellies of the digastric muscle can easily be confused with the pathologic conditions in ultrasonography, computed tomography, and magnetic resonance imaging; therefore, it is necessary to recognize that variants of the anterior belly of the digastric muscle occur to avoid confusion when diagnosis shows abnormal lesions in the floor of the mouth and submental region. Additionally, the possible occurrence of such anomalies should be remembered during the surgical procedures involving the submental region.

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Section: Discussionmentioning

confidence: 99%

The Cause of the Difference in the Submental Region

Ozgur

Gövsa²,

Özgür³

2007

Journal of Craniofacial Surgery

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“…Many authours have reported cases with abnormal digastric muscles (Celik et al ., 1992, 1993; Traini, 1993; Sargon & Celik, 1994; Sarikcioglu et al ., 1998; Holibková & Machálek, 1999; Peker et al ., 2000; Celik et al ., 2002). Bilateral anomalies of digastric muscles are reported to be more rare than unilateral anomalies (Testut & Laterjet, 1948; Traini, 1993; Holibková & Machálek, 1999; Peker et al ., 2000).…”

Section: Discussionmentioning

confidence: 99%

Bilateral abnormal anterior bellies of digastric muscles

2004

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During dissection of the submental region of a male cadaver, we encountered an abnormal digastric muscle on both sides. Two muscle bundles, both of which fused with mylohyoid muscle close to the midline, were observed on the right side. The anterior one originated from the digastric fossa and its length and width were 27 and 9 mm, respectively. The posterior accessory belly originated from the right intermediate tendon and it was 32 mm in length and 11 mm wide. On the left side, there was a single accessory bundle that originated from the left intermediate tendon and inserted into the mylohyoid raphe at the fusion point of the right accessory bundles. The length and width of this belly were 29 and 9 mm, respectively. The remaining suprahyoid muscles of both sides were normal. Anatomical variations of digastric muscle have to be considered in the imaging procedures of the soft tissue masses in the submental region.

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“…Celik and co-authors reported asymmetric accessory enlarged ADMBs extending from the HB to the chin [7]. In another study, Celik et al referred that the muscle bands of a triple right-sided ADMB joined the IMT and expanded to the PDMB [14]. In another study, a unilateral quadrification of the ADMB was detected, while Sarikcioglu et al reported an atypical DM with three accessory bellies and a fibrous band being inserted into the MHM raphe [10,15].…”

Section: The Admb Variability Among Various Studiesmentioning

confidence: 99%

Asymmetry of the Accessory Anterior Digastric Muscle Bellies: The Clinical Significance in Facial and Neck Surgery

Natsis

Piagkou

Lazaridis

et al. 2020

Cureus

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The anterior digastric muscle belly (ADMB) may present significant variations of substantial surgical importance. We present an unusual complex bilateral asymmetry of an accessory ADMB found when dissecting the submental area in a 72-year-old Greek male cadaver. A rare variant was recognized in the submental area constituted by a combination of bilateral asymmetry of the ADMB with unilateral absence of the intermediate tendon. The complex variant caused an obvious morphological asymmetry in the submental area. Such muscular variations may alter the surgical approach to the submental region. Clinicians involved in the treatment of this area should be aware of any possible variant, particularly when dealing with neck mass patients.

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Observation of anomalus triplication of unilateral anterior digastric muscle

Cited by 8 publications

References 7 publications

The Cause of the Difference in the Submental Region

The Cause of the Difference in the Submental Region

Bilateral abnormal anterior bellies of digastric muscles

Asymmetry of the Accessory Anterior Digastric Muscle Bellies: The Clinical Significance in Facial and Neck Surgery

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