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Two young girls with pyogenic sacroiliitis
  1. S W Kadir,
  2. M E C Jeurissen,
  3. M J A M Franssen
  1. Department of Rheumatology, Sint Maartenskliniek Nijmegen, Hengstdal 3, 6522 JV Nijmegen, The Netherlands
  1. Correspondence to:
    Dr S W Kadir
    Department of Rheumatology, Sint Maartenskliniek Nijmegen, Postbus 9011, 6500 GM Nijmegen, The Netherlands;

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Pyogenic sacroiliitis is a rare condition with often vague symptoms mimicking common conditions such as protruded disk, muscular strain, or visceral pain. Therefore the diagnosis is often missed or delayed. In 1986, Cohn and Schoetz reviewed patients with pyogenic sacroiliitis.1 In 12.6% of these cases sacroiliitis mimicked the acute abdomen. In 40–60% fever and a raised erythrocyte sedimentation rate were present. Blood cultures were positive in 60%. Magnetic resonance imaging and computer tomography can be helpful, but especially when blood cultures are negative, joint aspiration can be crucial for establishing the diagnosis. We present two cases of infectious sacroiliitis.


Patient 1

A 19 year old woman was admitted to hospital with a 4 day history of pain in the right hip and buttock, and fever. Walking was difficult and transfers were impossible to …

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