Department of Internal Medicine, Mayo Clinic, Rochester, Minnesota, USA
Department of Radiology, Mayo Clinic Minnesota, Rochester, Minnesota, USA.
BMJ Case Rep. 2024 Aug 22;17(8):e261713. doi: 10.1136/bcr-2024-261713.
Arteriovenous malformations (AVMs) in mesenteric vessels are exceptionally rare. These congenital vascular anomalies lead to direct vascular flow between the highly pressured arterial system and the low-pressure venous system. We describe the case of a patient with prior left colectomy for splenic flexure colonic adenocarcinoma presenting with persistent abdominal pain after developing multiple mesenteric thromboses. CT and colonoscopy showed left hemicolon congestion, anastomotic stenosis and mucosal oedema. Mesenteric angiogram revealed AVMs in the right colic and left colic arteries. Embolisation of the left colic AVM led to symptom resolution without recurrence at interval follow-up.
肠系膜血管动静脉畸形（AVMs）非常罕见。这些先天性血管异常导致高压的动脉系统与低压的静脉系统之间直接血流。我们描述了一位患者的病例，该患者因脾曲结肠癌行左结肠切除术，术后发生多处肠系膜血栓形成后持续腹痛。CT 和结肠镜检查显示左半结肠充血、吻合口狭窄和黏膜水肿。肠系膜血管造影显示右结肠和左结肠动脉的 AVM。左结肠 AVM 栓塞后症状缓解，随访期间无复发。
