Case of multiple myeloma mimicking an infectious disease with fever, intrahepatic cholestasis, renal failure, and pulmonary insufficiency.

We describe a case of multiple myeloma (MM) presenting with high fever, inflammatory chemistry abnormalities, simultaneous acute renal failure, cholestatic hepatitis, and acute lung failure. The extremely aggressive course and pulmonary involvement in the form of pulmonary alveolar proteinosis (PAP) are discussed, stressing the unusual nature of the findings and the variable picture of MM.