英: adventitial cyst of popliteal artery
関: 膝窩動脈

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

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1. 膝窩（ベーカー）嚢腫popliteal bakers cyst [show details]
…tumor from a popliteal cyst with debris. A positive Foucher sign of softening and/or of decreased size of a popliteal cyst with knee flexion is consistent with, but not specific for, a Baker cyst. Pigmented …
2. 跛行または重症下肢虚血を起こす非アテローム性膝窩動脈疾患nonatheromatous popliteal artery diseases causing claudication or limb threatening ischemia [show details]
…hematoma (3 percent) . Adventitial cystic disease (ACD) is a condition of unknown etiology that results in cysts containing gelatinous mucoid material located between the adventitial and medial layers of …
3. 成人における慢性膝痛の放射線評価radiologic evaluation of the chronically painful knee in adults [show details]
…the popliteal bursa, also known as Baker cyst. Baker cyst is commonly associated with meniscal tears and other causes of internal derangement of the joint. Baker cyst is also associated with arthropathies …
4. 膝の身体診察physical examination of the knee [show details]
… non-pulsatile and represent simple popliteal cysts. Popliteal cysts are fluid filled masses originating from the knee joint capsule ("Baker cyst"),… the iliotibial band and the lateral femoral condyle can cause the formation of a secondary, or adventitial, bursa. A neurovascular bundle that includes the popliteal artery, popliteal vein, and tibial …
5. 筋骨格系超音波検査：臨床応用musculoskeletal ultrasonography clinical applications [show details]
…posteriorly may individually or jointly contribute to the formation of a Baker cyst. Thus, on transverse sonograms, the Baker cyst may take various forms, which include the following: If there is no connection …