Department of Oral and Maxillofacial Radiology, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
Department of Oral Maxillofacial Surgery, Hiroshima University Hospital, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8553, Japan.
Oral Radiol. 2019 Sep;35(3):331-334. doi: 10.1007/s11282-018-0355-7. Epub 2018 Oct 30.
The common carotid artery (CCA) usually runs along the long axis of the neck, although it is occasionally found in an abnormal position or is displaced. We report a case of an 86-year-old woman in whom the CCA was identified in the submandibular area. The patient visited our clinic and reported soft tissue swelling in the right submandibular area. It resembled a tumor mass or a swollen lymph node. Computed tomography showed that it was the right CCA that had been bent forward and was running along the submandibular subcutaneous area. Ultrasonography verified the diagnosis. No other lesions were found on the diagnostic images. Consequently, the patient was diagnosed as having abnormal CCA positioning. Although this condition generally requires no treatment, it is important to follow-up the abnormality with diagnostic imaging because of the risk of cerebrovascular disorders.
颈总动脉（CCA）通常沿着颈部的长轴走行，尽管它偶尔会出现在异常位置或移位。我们报告了一例 86 岁女性 CCA 位于颌下区的病例。患者因右侧颌下区软组织肿胀就诊，触诊类似于肿瘤或肿大的淋巴结。CT 显示右侧 CCA 向前弯曲，沿颌下皮下区域走行。超声检查证实了这一诊断。诊断图像上未发现其他病变。因此，患者被诊断为 CCA 位置异常。虽然这种情况通常不需要治疗，但由于存在脑血管疾病的风险，重要的是通过诊断影像学对异常情况进行随访。
