Abstract
A 58-year-old female patient presented with altered mental status, diarrhea, and fever. She was hospitalized for acute kidney injury [AKI] and a patchy right lower lobe infiltrates on chest X-ray. Subsequent testing revealed rhabdomyolysis and a positive urinary Legionella antigen test. Creatinine kinase [CK] level peaked at 512,820 U/L and was managed with aggressive intravenous hydration and appropriate antibiotic treatment. With clinical signs of resolution of pneumonia, the CK level declined rapidly, however renal function returned to baseline only after 2 months requiring hemodialysis in the meantime. The patient was also on tofacitinib which can rarely contribute to rhabdomyolysis. Legionella infection can cause severe rhabdomyolysis and AKI. Timely diagnosis of Legionella-associated rhabdomyolysis, and prompt treatment with aggressive IV hydration and appropriate antibiotics is required to prevent morbidity and mortality.
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