Bilateral çift başlı M. digastricus venter anterior varyasyonu: Olgu sunumu

Submental bölgenin rutin anatomik diseksiyonu sırasında bir erkek kadavrada m. digastricus venter anterior'larında varyasyona rastlanmıştır. M. digastricus venter anterior'ları bilateral çift başlı olarak izlenmiştir. Venter posterior'lar bilateral normal bulunmuştur. M. digastricus anomalileri çok nadir değildir. Bu nedenle submental bölgeyi içeren cerrahi girişimlerde veya bu bölgenin BT ve MR ile radyolojik incelemelerinde bu tip varyasyonların görülebileceği akılda tutulmalıdır.

A case of digastric muscle with bilateral double anterior belly

During the routine anatomic dissection of the submental region in a male cadaver, an anatomical variation of both digastric muscles was found. This muscle had four bellies. The posterior bellies of the digastric muscles were normal. Anomalies of the anterior belly of the digastric muscle are not very rare. The possibility of this kind of anomaly should be kept in mind during radiological examinations such as CT and MR and surgical procedures involving this region.

PDF

___

1. Moore KL, Persaud TVN. The Developing Human. Clinically Ori- ented Embryology. 6th. Ed., WB Saunders, Philadelphia, 1998- pn-217,227-228,429. 2. Testut 1. Trattato di Anatomica Umana.Volume primo, Unione Tipog- raphico-Editrice, Torino, 1894; pp: 68-70. Guelfguat M, NurbhalN Solounias N. Median accessory digastric muscle: Radiological and surgical correlation. Clin Anat 2001; 14: 42-46 künyeli makaleden alınmıştır. 3. Traini M. Bilateral accessory digastric muscles. Clin Anat 1983; 5: 199-2000. 4. Larsson SG, Lufkin RB. Anomalies of digastric muscle: CT and MR demonstration. J Comput Assist Tomogr 1987; 11: 422-425. 5. Michna H. Anatomical anomaly of human digastric muscles. Acta Anat 1989; 134: 263-264. 6. Çelik HH, Yılmaz E, Atasever A, Durgun B, Taner D. Bilateral anatomical anomaly of anterior belliesof digastrik muscle. Acta Anat Nippon 1992; 67: 650-651. 7. Çelik HH, Yılmaz E, Atasever A, Durgun B, Taner D. Observation of anomalous triplication of unilateral anterior digastric muscle. Clin Anat 1993; 6: 353-355. 8. Sargon MF, Çelik HH. An abnormal digastric muscle with three bellies. SurgRadiol Anat 1994; 16:215-216. 9. Uslu SS, Atilla S, Çelik HH, înal E. An important anatomic variation in head and neck region: Anomaly of the anterior belly of the digastric muscle. Bull Assoc Anat 1995; 79: 39-41. 10. Sarıkçıoğlu L, Demir S, Oğuz N, Sindel M. An anomalous digastric muscle with three accessory bellies and one fibrous band. Surg RadiolAnat 1998; 20: 453-454. 11. Peker T, Turgut HB, Anil A. Bilateral anomaly of anterior bellies of digastric muscles. Surg Radiol Anat 2000; 22: 119-121. 12. Guelfguat M, Nurbhal N, Solounias N. Median accessory digastric muscle: Radiological and surgical correlation. Clin Anat 2001; 14: 42-46. 13. Çelik HH, Aldur MM, Özdemir B, Akşit MD. Abnormal digastric muscle with unilateral quadrification of the anterior belly. Clin Anat 2002; 15:32-34. 14. Sadler TW. Langman's Medical Embryology. 5th Ed., Williams & Wilkins, Baltimore, 1985; pp: 281-286, 307. 15. Ruffini, A. Sul muscolo interdigastrico di Bianchi e sull'aponeurosi soprajoidea od intermediojoidea. Rarissimo caso di mancanza bilaterale del ventre anteriore del m. digastrico della mandibola. Arch Ital Anat e di Embriol 1908; 7: 578-601 (Bergman RA, Afifi AK, Miyauchi R. Illustrated Encyclopedia of Human Anatomic Variations. The University of Iowa, 2002'den alınmıştır). 16. Bergman RA, Afifi AK, Miyauchi R. Illustrated Encyclopedia of Human Anatomic Variations. The University of Iowa, 2002 (http://www.vh.org/adult/provider/anatomy/AnatomicVariants/MuscularSystem/Text/D/05Digastricus.html). 17. Tan ST. Anterior belly of digastric muscle transfer: A useful technique in head and neck surgery. Head Neck 2002; 24: 947-954.