[Pyomyositis in adults in central Tunisia. Apropos of 10 cases]

Ten adult patients treated for pyomyositis between 1988 and 1994 in Sousse's university hospital (Tunisia) were retrospectively reviewed. Due to the non specific symptoms, the diagnosis was often delayed (mean = 17 days) and other primary diagnoses were considered, mainly including synovitis. The muscles around hip and thigh were most commonly involved (ten patients), and Staphylococcus aureus was the most common pathogen (nine patients). Ultrasonography was very helpful in the accurate diagnosis of the infection. Incision, drainage, and antibiotic therapy eradicated the infection in all patients. No residual functional limitations and no residual symptoms were noted. Our study showed that pyomyositis is present in central Tunisia and not associated with HIV infection. Clinical features and prognosis are similar to those previously described in the literature.