Mycoplasmal pneumonia associated with mesangiocapillary glomerulonephritis type II (dense deposit disease).

Abstract

A 20-year-old man developed pneumonia and glomerulonephritis concomitantly with significantly rising Mycoplasma pneumoniae complement-fixing antibody titres. Renal biopsy showed mesangiocapillary glomerulonephritis type II (dense deposit disease). Attempts to demonstrate mycoplasmal antigen in the glomeruli failed. This is the third of five previously reported cases of glomerulonephritis associated with Mycoplasma pneumoniae and exhibiting dense deposit disease.