Pyomyositis in a 5-year-old child.
We present a case of pyomyositis in an otherwise healthy 5-year-old child that underscores the potential for serious, life-threatening complications. Pyomyositis of the gluteal, psoas, and iliacus muscles was associated with osteomyelitis, septic arthritis, a large inferior vena cava thrombus, septic pulmonary emboli, and eventual pneumonia. Primary pyomyositis is a purulent infection of striated muscle thought to be caused by seeding from a transient bacteremia. The focal infection typically forms an abscess that generally responds to intravenous antibiotics and occasionally requires adjunctive computed tomography-guided aspiration and drainage. This localized infectious process rarely produces further sequelae unless treatment is delayed. Pyomyositis is rare in healthy individuals and requires a high clinical suspicion in patients who present with fever, leukocytosis, and localized pain.
Department of Family Practice, Kaiser Permanente, Fontana, Calif 92335, USA.
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D000038:Abscess / Q000175:diagnosis*; D002675:Child, Preschool; D006615:Hip; D006801:Humans; D008297:Male; D009220:Myositis / Q000175:diagnosis*; D013203:Staphylococcal Infections / Q000175:diagnosis*