Glomerulonephritis and sinusitis. Hypocomplementemic glomerulonephritis associated with coagulase-negative staphylococcal pansinusitis and subdural empyema.

A 16-year-old male developed acute hypocomplementemic glomerulonephritis in association with pansinusitis and subdural empyema. Nephrotic-range proteinuria, serum complement, and renal function rapidly returned to normal with antimicrobial therapy and surgical drainage of both infected cavities. Culture of the exudate obtained during drainage of the frontal sinus yielded pure growth of coagulase-negative staphylococcus. This case documents the association of acute hypocomplementemic glomerulonephritis and pansinusitis-subdural empyema due to coagulase-negative staphylococcus, not previously described.