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  • Title: Cystic adventitial degeneration: ectopic ganglia from adjacent joint capsules.
    Author: Ortmann J, Widmer MK, Gretener S, Do DD, Willenberg T, Daliri A, Baumgartner I.
    Journal: Vasa; 2009 Nov; 38(4):374-7. PubMed ID: 19998258.
    Abstract:
    Cystic adventitial degeneration is a rare non-atherosclerotic cause of peripheral arterial occlusive disease, mainly seen in young men without other evidence of vascular disease. Diagnosis will be established by clinical findings and by ultrasound or angiography and can be treated by excision or enucleation of the affected arterial segment or by percutaneous ultrasound-guided aspiration. However, the etiology of adventitial cysts remains unknown. We report a case of cystic adventitial degeneration showing a connection between the joint capsule and the adventitial cyst, supporting the theory that cystic adventitial degeneration may represent ectopic ganglia from adjacent joint capsules.
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