Pes anserinus tendino-bursitis: what are we talking about?

We studied the ultrasonographic (US) Features of the pes anserinus insersio n (PA) and subcutaneous medial knee fat in patients clinically diagnosed of pes anserinus tendino-bursitis (PATB) syndrome. Thirty seven consecutive p atients with suspected PATB were clinically evaluated and their knees exami ned using a 7.5 MHz linear probe. In twenty-three patients with unilateral clinical PATB (group A) the painful knee was compared with their painless o pposite knee. Six patients with bilateral clinical PATB (group B) were comp ared with 6 healthy controls (group C). All patients were women with radiog raphic knee osteoarthritis in 93% and body mass index > 27 in 75%. US pes a nsermus tendinitis was found in one symptomatic knee and Fes anserinus burs itis in two symptomatic knees and in one asymptomatic knee. No US signs of panniculitis were found in patients and controls. In conclusion. patients d iagnosed of PATB syndrome in rheumatology rarely have US tendinitis or burs itis of the PA.