Abstract
A-67-year-old man developed severe hypoxemic pneumonia and acute renal failure with nephrotic syndrome, associated with Mycoplasma pneumoniae infection. Antibody- or immune complex-mediated mechanisms appeared likely, since there was apparent deposition of immunoglobulin (IgM) and complement components (Clq, C3) in the glomeruli, although light microscopy of renal biopsy tissue revealed minor glomerular abnormalities with tubulointerstitial change. The initial antibiotic treatment was not appropriated, therefore possibly allowed the progression of the disease. Early diagnosis and appropriate therapy are essential to the management of Mycoplasma pneumoniae infection
