This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pediatrics
A child was diagnosed as a case of pauci–immune crescentic glomerulonephritis. The treatment to be given in this child is – 
Select and explain. 
A. Prednisolone + Cyclophosphamide, B. Methylprednisolone, C. Cyclophosphamide, D. Immumoglobins
A: Prednisolone + Cyclophosphamide
Answer: A: Prednisolone + Cyclophosphamide 
Explanation: Panel-immune glomerulonephritis 

Pauci-immune glomerulonephritis is defined as the lack of anti-GBM antibodies or immune complex.
It is a type of rapidly progressive glomerulonephritis.
Causes are :-
Idiopathic renal-limited crescentic glomerulonephritis (ANCA associated). 
Microscopic PAN        
Microscopic polyangitis            
Wegner's gramdomatosis                                                                                        
It is treated aggressively with glucocorticoids with or without cyclophosphamide or azathioprine