[Multidisciplinary approach in pyomyositis early diagnosis].

Pyomyositis is a disease characterized by primary bacterial infection of the skeletal muscles of lower limbs and thorax. It is a very rare disease (100 cases in USA in the last 20 years) but with an increasing occurrence especially among patients with AIDS in an advanced stage or in association with other pathologic conditions like diabetes mellitus, cancer, connective tissue diseases or hematological disorders, long usage of corticosteroid drugs. We are hereby showing the case of a 46-year-old female who presented difficult problems of differential diagnosis until final diagnosis was established.