[Anaerobic sternocostoclavicular septic arthritis: a case report].
ABSTRACT Septic arthirtis of the sternocostoclavicular joint is exceptional and usually occurs in immunodeficient subjects. The clinical presentation may be misleading, a rheumatoid disease often being suggested. We report a case of secondary joint infection caused by anaerobic bacteria and discuss the diagnostic problems involved as well as the disease course and the therapeutic options proposed in the literature. The diagnosis calls upon computed tomography and magnetic resonance imaging, leading to joint needle aspiration. Appropriate imaging enables an assessment of the anatomic damage and is useful for guiding surgical treatment under adapted antibiotic coverage.