膝窩動脈外膜嚢胞
概念
- 嚢胞の血行障害により生じる。嚢胞は変性、胚性、あるいはガングリオンによるものがある。(参考1)
- 若年者から中年でみられるが、嚢胞が原因の血行障害であるため、動脈硬化などのリスクファクターがない若年者でも起こりうる。(参考1)
身体所見
- 下肢で脈を触れない
症状
- 間欠性跛行、疼痛
参考
- Involvement of the genicular branches in cystic adventitial disease of the popliteal artery as a possible marker of unfavourable early clinical outcome: a case report.
- Ypsilantis EA, Tisi PV.
- J Med Case Reports. 2010 Mar 18;4:91.
- INTRODUCTION: Cystic adventitial disease of the popliteal artery is a rare cause of non-atheromatous claudication. It usually requires surgery to improve the distance walked by patients.
- CASE PRESENTATION: We report the case of a 44-year-old Caucasian man with unilateral symptomatic popliteal cysts extending to his genicular branches and associated with multilevel stenosis of his anterior tibial artery. A surgical evacuation of the cysts successfully restored his arterial patency and led to an objective haemodynamic improvement but was associated with early recurrence of symptoms.
- CONCLUSION: We suggest that the involvement of the genicular branches in cystic adventitial disease of the popliteal artery is a possible indicator of extensive adventitial degeneration and unfavourable clinical prognosis.
- PMID 20298598