Backgound: Pyomyositis is a medical condition characterized by pus collection and abscess formation within the skeletal muscles . There are two main loci, where pyomyositis develops; tropic regions that primarily occurs in healthy children along with temperate areas, where the affected population is primarily immunocompromised adults . The most common predisposing factor is any state of immunodeficiency . The most common culprit is Staphylococcus aureus (S. aureus). The classic clinical presentation of the disease is cramping muscle pain accompanied by fever. The anatomical parts most commonly affected are the lower extremities . Complications include pericarditis, septic emboli, endocarditis and even rhabdomyolysis . Cultures of drainage specimens and radiographic imaging point to the correct diagnosis . Antibiotic coverage and drainage of purulent material is the treatment of choice . Case presentation: Herein, we cite an eighty-two-years old male patient with pyomyositis, S. aureus bacteremia and newly diagnosed type II diabetes mellitus, who presented with muscle weakness complicated by rhabdomyolysis. Conclusion: Diabetes mellitus may be the substrate for the development of pyomyositis.
Key words: pyomyositis, Staphylococcus aureus, muscle tenderness, type II diabetes mellitus, antibiotics, surgical drainage.
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