Acromioclavicular (AC) and sternoclavicular (SC) septic arthritis with contiguous pyomyositis are rare, especially in immunocompetent individuals. We report a case of septic AC joint with pyomyositis of the deltoid and supraspinatus muscles and a separate case with septic SC joint with pyomysitis of the sternocleidomastoid muscle. Both patients had similar presentations of infections with Staphylococcus aureus and were successfully treated with surgical incision and drainage followed by prolonged antibiotic therapy.
*Acromioclavicular Joint/microbiology ; Adult ; Anti-Bacterial Agents/administration & dosage ; Arthritis, Infectious/diagnosis/microbiology/*therapy ; Female ; Humans ; Magnetic Resonance Imaging ; Pyomyositis/diagnosis/microbiology/*therapy ; Staphylococcal Infections/complications/*therapy ; *Staphylococcus aureus ; *Sternoclavicular Joint/microbiology

No abstract available.
Acute Disease ; Aged ; Anti-Bacterial Agents/therapeutic use ; Anti-Inflammatory Agents, Non-Steroidal/therapeutic use ; Buttocks ; Debridement ; Diabetes Mellitus, Type 2/*complications/diagnosis ; Escherichia coli Infections/diagnosis/drug therapy/*microbiology ; Female ; Humans ; Microbial Sensitivity Tests ; Muscle, Skeletal/*microbiology/surgery ; Pyelonephritis/diagnosis/drug therapy/*microbiology ; Pyomyositis/diagnosis/*microbiology/therapy ; Tomography, X-Ray Computed ; Treatment Outcome