This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2018, Subject name: Pathology
Crescent forming glomerulonephritis is:- 
Select and explain. 
A. MIPGN, B. MGN, C. RPGN, D. All of the above
C: RPGN
Answer: C: RPGN 
Explanation: * Rapidly progressive glomerulonephritis : Characterized by progression to acute renal failure within 4 wks * Gross morphology : Flea bitten kidney is seen in : R - RPGN S - Subacute bact. Endocarditis M - Malignant Hypeension * Microscopic Examination : "Crescent Formation"- Proliferation of parietal epithelium + fibrin + WBC More the number of crescents - poorer the prognosis