Pyogenic sacroiliitis.

@article{Carlson1994PyogenicS,
  title={Pyogenic sacroiliitis.},
  author={Steig A. Carlson and Jeffrey Jones},
  journal={The American journal of emergency medicine},
  year={1994},
  volume={12 6},
  pages={639-41}
}
This report describes two cases of pyogenic sacroiliitis with remarkably similar histories. The initial diagnosis is often overlooked because of its rarity and poorly localized signs and symptoms. Clinical and radiological findings, as well as treatment measures, are discussed. Familiarity with this type of septic arthritis is essential if prompt and appropriate therapy is to be rendered.