Endovascular exclusion for a left vein brachiocephalic pseudoaneurysm

: Venous pseudoaneurysms combined with intramural thrombus are rare vascular malformations with few reported cases. Progression of aneurysms may lead to pulmonary embolism, requiring prophylactic measures including surgical resection or intervention. The indications for these treatment modalities, however, are controversial and the salient features supporting the choice of treatment are unclear. We report a case of venous pseudoaneurysm in the left brachiocephalic veincombined with an intratumoral thrombus, which was treated with endoluminal isolation with a laminating stent. : A 53-year-old woman was admitted after a physical examination had revealed a mediastinal mass 2 months earlier. CTV showed an irregular tumour-like dilatation at the confluence of the left brachiocephalic vein, with a maximal cross-sectional area of 40.9 mm × 45.3 mm. Intervention wasrecommended due to the risk of progression and rupture of the venous aneurysm. Endovascular surgery was performed, with good postoperative recovery. At 1 year follow-up, the patient was asymptomatic with no complications and the stent lumen remained patent. : Endovascular surgery may be a viable treatment option for cases such as the one described; however, its long-term efficacy requires further evaluation.