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Baker's cyst connected to popliteal artery cyst

H Schroë1, C Van Opstal, J De Leersnijder

  • 1Department of Vascular Surgery, St. Norbertus, Clinic, Duffel, Belgium.

Insights

Cystic adventitial disease compressed a patient's popliteal artery, causing exercise-induced ischemia. The condition involved a Baker's cyst, with fluid shifting into the artery cyst upon compression.

Area of Science:

  • Vascular Surgery
  • Musculoskeletal Disorders
  • Diagnostic Imaging

Background:

  • Cystic adventitial disease (CAD) is a rare condition causing arterial stenosis.
  • Popliteal artery involvement is most common, often affecting middle-aged men.
  • Associated Baker's cysts are infrequently reported.

Purpose of the Study:

  • To present a unique case of popliteal artery compression by cystic adventitial disease linked to a Baker's cyst.
  • To elucidate the mechanism of exercise-induced ischemia in this specific presentation.
  • To discuss the potential etiology of this rare vascular condition.

Main Methods:

  • Case report detailing clinical presentation, diagnostic findings, and management.
  • Review of relevant literature on cystic adventitial disease and Baker's cysts.
  • Discussion of the proposed pathophysiology based on cyst fluid dynamics.

Main Results:

  • A patient presented with intermittent claudication due to left popliteal artery compression.
  • Imaging revealed an adventitial cyst connected to a Baker's cyst.
  • Symptoms were triggered by exercise, attributed to Baker's cyst compression forcing fluid into the adventitial cyst.

Conclusions:

  • The connection between Baker's cyst and popliteal artery adventitial cyst can cause dynamic arterial compression.
  • Exercise-induced mechanical stress on the Baker's cyst is a plausible mechanism for symptom onset.
  • This case highlights the importance of considering associated cystic structures in CAD etiology.

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