Abstract：
Vascular anomalies are categorized as vascular tumors or vascular malformations (VMs) based on the system of classification (updated in 2018) established by the International Society for the Study of Vascular Anomalies. In the orofacial region, such anomalies are most likely to occur in the lips or tongue, and only rarely in the buccal fat pad. This report describes a case of a VM in the buccal fat pad. A 47-year-old woman was referred to our hospital with a mass lesion in her left cheek. On palpation, an elastic, hard, painless, and mobile mass was found anterior to the left masseter muscle. Computed tomography, magnetic resonance imaging, and ultrasonography revealed a mass in the left buccal fat pad. The lesion was identified as a benign tumor and surgical excision performed under general anesthesia. Histopathological examination revealed that the lesion was composed of a large number of vascular structures of various sizes covered with endothelial cells. Based on the clinical and histopathological findings, a diagnosis of a venous VM was made. One year has passed since the operation and no recurrence has been observed. Long-term follow-up is planned.
摘要：
根据国际血管异常研究学会建立的分类系统（2018年更新），血管异常被归类为血管肿瘤或血管畸形（VMs）。在口面区域，这种异常最可能发生在嘴唇或舌头上，很少在颊脂肪垫中。本报告描述了颊脂肪垫中的VM的情况。一名47岁的妇女因左脸颊肿块病变被转诊到我们医院。在触诊时，一个弹性的，硬,无痛,在左侧咬肌前方发现了活动肿块。计算机断层扫描,磁共振成像，超声检查显示左侧颊脂肪垫有肿块。病变被确定为良性肿瘤，并在全身麻醉下进行手术切除。组织病理学检查显示，病变由大量覆盖有内皮细胞的各种大小的血管结构组成。根据临床和组织病理学发现，诊断为静脉VM.手术一年过去了，没有发现复发。长期跟踪计划。
