ArticleCase reports in vascular medicine2026
Coil Embolization and Open Splenectomy for a Massive Splenic Vein Aneurysm: A Case Report.
Article in Case reports in vascular medicine, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
Background: Splenic vein aneurysms (SVAs) are a rare vascular anomaly of the portal system that are often asymptomatic and found incidentally on imaging. Intervention is reserved for aneurysms that are enlarging, thrombosed, symptomatic, or ruptured to avoid catastrophic complications. This can range from endovascular to open, complex procedures. Here, we present the case of a massive, symptomatic, partially thrombosed SVA that required a hybrid approach involving both minimally invasive and open surgery. Case Presentation: A 56-year-old woman presented to the emergency department for an infected right foot wound and was admitted for intravenous antibiotics and surgical debridement. While hospitalized, she had a worsening transaminitis with associated abdominal pain, prompting investigation with a computed tomography (CT) scan, which identified a massively dilated, partially thrombosed SVA measuring 18 cm. Given the enormous size of the aneurysm and substantial risk of impending rupture, urgent surgical intervention was planned. Preoperative coil embolization of the splenic artery was performed first to reduce the arterial inflow to the SVA and to minimize the risk of intraoperative hemorrhage during open resection. Three days after embolization, the patient underwent open splenectomy with aneurysmectomy for definitive management. The patient's postoperative course was complicated by a bleeding gastric ulcer that was successfully cauterized, and she was discharged home on postoperative Day 10 after receiving the recommended postsplenectomy vaccines. Conclusion: No standard treatment algorithm exists for SVAs, as management is individualized, and treatment evidence is limited to case reports and series. This patient had one of the largest SVAs ever recorded, and management was based on the acuity of symptoms, size, and rupture risk of the aneurysm sac. This case also demonstrated the success of a novel management approach to massive SVAs, using preoperative embolization of the splenic artery followed by open resection without portal reconstruction.
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