Kehara Hiromu, Wada Yuko, Fukui Daisuke, Shingu Kunihiko, Seto Tatsuichiro, Okada Kenji
Department of Cardiovascular Surgery, Suwa Red Cross Hospital, Nagano, Japan.
Department of Cardiovascular Surgery, Shinshu University School of Medicine, Nagano, Japan.
Ann Vasc Surg. 2018 Feb;47:279.e1-279.e5. doi: 10.1016/j.avsg.2017.06.036. Epub 2017 Jun 21.
Aneurysm of the proximal ulnar artery is extremely rare. Ultrasonography, computed tomography, and magnetic resonance imaging generally provide accurate diagnosis of aneurysm. A 29-year-old woman who had undergone an excision biopsy of a mass in her right arm by an orthopedic surgeon was referred to our department. We resected the mass and interposed it with a reversed great saphenous vein. Histopathological examination suggested that the mass was a pseudoaneurysm consisting of organized thrombi with recanalization. Clinicians should be aware of the possibility of misdiagnosis of soft tissue tumor in cases of pseudoaneurysm, especially if imaging examination reveals a density consistent with organized thrombus with recanalization.
尺动脉近端动脉瘤极为罕见。超声检查、计算机断层扫描和磁共振成像通常能准确诊断动脉瘤。一名29岁女性因骨科医生对其右臂肿物进行切除活检后转诊至我科。我们切除了肿物并用一段大隐静脉倒置移植进行修复。组织病理学检查提示该肿物为假性动脉瘤，由机化血栓伴再通构成。临床医生应意识到在假性动脉瘤病例中存在软组织肿瘤误诊的可能性，尤其是当影像学检查显示密度与机化血栓伴再通一致时。
