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  • Title: Effectiveness of Surgical Treatment with Complete Cyst Excision for Cystic Adventitial Disease of the Popliteal Artery.
    Author: Jeong S, Kwon TW, Han Y, Cho YP.
    Journal: Ann Vasc Surg; 2021 Apr; 72():261-269. PubMed ID: 32946995.
    Abstract:
    BACKGROUND: Cystic adventitial disease is a rare, nonatherosclerotic disease that affects various arteries and veins, involving the formation of a mucinous cyst within the adventitia. The etiology of the cystic adventitial disease is currently unclear, with several hypotheses having been suggested. The purpose of this retrospective observational study was to evaluate the etiology of popliteal cystic adventitial disease based on imaging and surgical findings and to evaluate the efficacy of surgical treatment. METHODS: From April 2013 to January 2020, nine patients were diagnosed with the popliteal cystic adventitial disease and underwent surgical treatment. We performed complete resection of the cyst and the affected segment of the popliteal artery, followed by interposition with autologous reversed small saphenous vein or great saphenous vein. RESULTS: The resected adventitial cyst tissue was multilobular, filled with high-viscosity mucus. Pathologic examination of the surgical specimen revealed intramural cysts filled with gelatinous material located between the media and the adventitia, consistent with the clinical diagnosis of cystic adventitial disease. The median follow-up period was 27.5 months (range: 2-91 months). All patients underwent cyst excision with graft interposition, and the overall graft patency was 80.9 months (95% CI: 62.2-99.6 months). CONCLUSIONS: Computed tomography, magnetic resonance imaging, and surgical findings confirmed communication between the synovial cyst and arterial adventitia. It is recommended that priority be given to surgical resection and graft interposition because this can eliminate the disease's cause and reduce its recurrence.
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