DOI QR코드

DOI QR Code

Bilateral variations of the head of the digastric muscle in Korean: a case report

  • Kyung, Dong-Soo (Medical Course, Keimyung University School of Medicine) ;
  • Lee, Jae-Ho (Department of Anatomy, Keimyung University School of Medicine) ;
  • Lee, Yong-Pil (Medical Course, Keimyung University School of Medicine) ;
  • Kim, Dae-Kwang (Department of Anatomy, Keimyung University School of Medicine) ;
  • Choi, In-Jang (Department of Anatomy, Keimyung University School of Medicine)
  • 발행 : 2011.09.30

초록

The digastric muscle, as the landmark in head and neck surgery, has two bellies, of which various variations have been reported. In the submental region of a 72-year-old Korean male cadaver, bilateral variations were found in the anterior belly of the digastric muscle. Two accessory bellies, medial to the two normal anterior bellies of the digastric muscle, ran posterior and medially, merging and attaching at the mylohyoid raphe of the mylohyoid muscle. The 3rd accessory belly originated from the right intermediate tendon and ran horizontally, merging the right lower bundle of the right accessory belly and inserted together. These accessory bellies had no connection with the left anterior belly. This unique variation has not been reported in the literature previously, and this presentation will guide clinicians during surgical interventions and radiological diagnoses.

키워드

참고문헌

  1. Traini M. Bilateral accessory digastric muscles. Anat Clin 1983;5:199-200. https://doi.org/10.1007/BF01799005
  2. Ziolkowski M, Marek J, Klak A. The human digastric muscle in the fetal period. Folia Morphol (Warsz) 1984;43:243-9.
  3. Larsson SG, Lufkin RB. Anomalies of digastric muscles: CT and MR demonstration. J Comput Assist Tomogr 1987;11:422-5. https://doi.org/10.1097/00004728-198705000-00010
  4. Fujimura A, Onodera M, Feng XY, Osawa T, Nara E, Nagato S, Matsumoto Y, Sasaki N, Nozaka Y. Abnormal anterior belly of the digastric muscle: a proposal for the classification of abnormalities. Anat Sci Int 2003;78:185-8. https://doi.org/10.1046/j.0022-7722.2003.00049.x
  5. Kim DH, Do HJ, Kim HJ, Won SY, Choi DY, Hu KS, Choi JH, Kim HJ. Anatomic variation of the anterior belly of digastric muscle and positional relationship between the posterior belly of digastric and stylohyoid muscle. Korean J Phys Anthropol 2010;23:9-16. https://doi.org/10.11637/kjpa.2010.23.1.9
  6. Celik H, Yilmaz E, Atasever A, Durgun B, Taner D. Bilateral anatomical anomaly of anterior bellies of digastric muscles. Kaibogaku Zasshi 1992;67:650-1.
  7. Sargon MF, Celik HH. An abnormal digastric muscle with three bellies. Surg Radiol Anat 1994;16:215-6. https://doi.org/10.1007/BF01627599
  8. Uslu SS, Atilla S, Celik HH, Inal E. An important anatomic variation in head and neck region: anomaly of the anterior belly of the digastric muscle. Bull Assoc Anat (Nancy) 1995;79:39-41.
  9. Ozgur Z, Govsa F, Ozgur T. The cause of the difference in the submental region: aberrant muscle bundles of the anterior belly of the digastric muscle. J Craniofac Surg 2007;18:875-81. https://doi.org/10.1097/scs.0b013e31806844da
  10. Aktekin M, Kurtoglu Z, Ozturk AH. A bilateral and symmetrical variation of the anterior belly of the digastric muscle. Acta Med Okayama 2003;57:205-7.

피인용 문헌

  1. Weave pattern of accessory heads to the anterior digastric muscle vol.37, pp.8, 2011, https://doi.org/10.1007/s00276-014-1401-8