Department of Neurosurgery, Shinshu University School of Medicine, Matsumoto, Japan.
Br J Neurosurg. 2023 Oct;37(5):1330-1332. doi: 10.1080/02688697.2020.1867705. Epub 2020 Dec 30.
Segmental arterial mediolysis (SAM) is a rare non-arteriosclerotic and non-inflammatory vascular disease. Superficial temporal artery (STA) aneurysms are usually associated with trauma, surgery, and hair transplantation. Spontaneous aneurysms of the STA are uncommon, but an STA aneurysm caused by SAM is rare. We report a 70-year-old woman with a spontaneous aneurysm of the STA. The mass in the left parietal region was pulsatile and gradually enlarged in size without any history of head trauma. The mass was successfully removed by surgery and was proved histopathologically to be a true aneurysm with SAM.
节段性动脉中层溶解症（SAM）是一种罕见的非动脉粥样硬化性和非炎症性血管疾病。颞浅动脉（STA）动脉瘤通常与创伤、手术和毛发移植有关。STA 的自发性动脉瘤并不常见，但由 SAM 引起的 STA 动脉瘤则较为罕见。我们报告了一例 70 岁女性的 STA 自发性动脉瘤。左侧顶区的肿块有搏动性，且大小逐渐增大，无头部外伤史。该肿块通过手术成功切除，并经组织病理学证实为伴有 SAM 的真性动脉瘤。
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