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Clinical features

Last reviewed dd mmm yyyy. Last edited dd mmm yyyy

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Baker's cysts can present as a chronic condition or as an acute one where the cyst ruptures.

In children it is typically an incidental finding and parents usually note a painless mass in the popliteal area (1). Adults may complain of a swelling, a mass, pain, or stiffness which is worsened by activity (2). In a study which observed 82 patients with surgically treated cysts

  • a mass was the main concern in 68 patients
  • local aching was seen in 46 patients
  • stiffness was present in 13 patients
  • swelling was present in 9 patients (2)

The swelling seen in popliteal cyst

  • is present at the medial aspect of the popliteal area
  • is round, smooth, fluctuant, trans-illuminates and is often tender
  • increases in tension on extension of the knee and soften or disappear when the knee is flexed to 45 degrees - (Foucher's sign) (2)

Reference:

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The content herein is provided for informational purposes and does not replace the need to apply professional clinical judgement when diagnosing or treating any medical condition. A licensed medical practitioner should be consulted for diagnosis and treatment of any and all medical conditions.

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