Boscia R, Knox R D, Adkins W Y, Holgate R C
Department of Otolaryngology and Communicative Sciences, Medical University of South Carolina, Charleston 29425.
Arch Otolaryngol Head Neck Surg. 1990 Jul;116(7):852-4. doi: 10.1001/archotol.1990.01870070100019.
Vascular anomalies of the middle ear are extremely rare. The most common anomaly is a persistent stapedial artery. This artery is important clinically because of the risk of profuse bleeding during middle ear surgery. We describe a 26-year-old woman with a glomus tympanicum tumor. The blood supply to the tumor was from a persistent stapedial artery. A preoperative angiogram supported this finding by demonstrating a small vessel originating from the anterior branch of the middle meningeal artery as the major vascular supply to the tumor. To our knowledge, this is the first case report of a glomus tympanicum tumor vascularized by a persistent stapedial artery that was suggested by angiography and confirmed intraoperatively. To better understand this anomaly, we review the embryological development of the stapedial artery and discuss its clinical significance.
中耳血管异常极为罕见。最常见的异常是镫骨动脉持续存在。由于中耳手术期间存在大出血风险，该动脉在临床上具有重要意义。我们描述了一名患有鼓室球瘤的26岁女性。肿瘤的血液供应来自镫骨动脉持续存在。术前血管造影显示一条起源于脑膜中动脉前支的小血管作为肿瘤的主要血管供应，支持了这一发现。据我们所知，这是首例经血管造影提示并经术中证实由镫骨动脉持续存在供血的鼓室球瘤病例报告。为了更好地理解这种异常，我们回顾了镫骨动脉的胚胎发育并讨论了其临床意义。
