Pes anserinus bursitis

Dr Henry Knipe and Dr Andrew Dixon et al.

Pes anserinus bursitis refers to symptomatic inflammation of the pes anserinus bursa which is located at the medial aspect of the knee (at the level of the joint space) deep to the pes anserinus tendons

Classically, symptoms are of pain and swelling along the proximal medial tibia, which may be exacerbated by particular activities such as ascending and descending stairs.  

The anatomic location is the key to making the diagnosis. The actual signs are those of bursitis anywhere else in the body 1.  

  • increased fluid within the bursa
  • thickened bursal wall 
  • surrounding tissue edema
  • abnormal wall / surrounding tissue enhancement

With the correct history of pain, many clinicians will diagnose pes anserinus bursitis based on the presence of increased bursal fluid alone.  

Knee pathology

The knee is a complex synovial joint that can be affected by a range of pathologies:

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Article information

rID: 16866
Synonyms or Alternate Spellings:
  • Pes anserine bursitis

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Cases and figures

  • Figure 1: pes anserinus bursa diagram
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  • Case 1
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  • Case 2
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