Uzun A, Aluclu A, Kavakli A
Deparment of Anatomy, School of Medicine, Inonu University, 44069, Kampus/Malatya, Turkey.
Auris Nasus Larynx. 2001 Apr;28(2):181-3. doi: 10.1016/s0385-8146(00)00100-0.
The aim of our paper is discussing anomalies of the anterior belly of the digastric muscle with presenting our case in light literature.
During dissection of the submental region of 26 years old Turkish female embedded cadaver, for this educational purpose in 2000, bilateral accessory digastric muscle was observed.
The anterior and posterior bellies of the digastric muscle had their normal origin and course and were joined by an intermediate tendon, the accessory anterior bellies originated from the digastric fossa, and inserted to the hyoid bone, with a common fibrous band. The accessory anterior bellies of the digastric muscle were in the same shape and coursed parallel to each other.
Anatomical variations of the anterior bellies of the digastric muscles can be easily confused with pathological conditions in CT and MR imaging, it is necessary to recognize that muscle variants of the digastric muscle occur to avoid confusion when diagnosing abnormal lesions of the floor of the mouth and submental region. In human body, such as these muscle variations have clinical significance.
本文旨在结合文献报道我们的病例，探讨二腹肌前腹的异常情况。
2000年，为教学目的，在解剖一名26岁土耳其女性尸体的颏下区域时，观察到双侧副二腹肌。
二腹肌的前腹和后腹有正常的起点和走行，并由中间腱相连，副前腹起自二腹肌窝，通过一条共同的纤维带止于舌骨。二腹肌的副前腹形态相同且相互平行走行。
二腹肌前腹的解剖变异在CT和MR成像中容易与病理情况相混淆，在诊断口底和颏下区域的异常病变时，有必要认识到二腹肌的肌肉变异情况以避免混淆。在人体中，这样的肌肉变异具有临床意义。
