NCIt definition : Inflammation of the glomeruli that is characterized by a rapid loss in renal function
with glomerular crescent formation observed on biopsy; it is often seen in patients
with concomitant autoimmune disease, like Goodpasture's syndrome or systemic lupus
erythematosus.;
Alternative definition : NICHD: Glomerulonephritis characterized by a rapid decrease in the glomerular filtration
rate, typically a 50% reduction occurring over days to weeks.;