​Differential diagnosis of causes of Neutropenia

​Differential diagnosis of causes of Neutropenia 
-congenital
-pure white cell aplasia 
-cyclic neutropenia 
-drugs such as sulfonamides, chlorpromazine, procainamide, penicillin, cephalosporin, cimetidine, methimazole, phenytoin, chlorpropamide, antiretrovirals,
-large granular lymphocytosis 
-acute viral infection 
-HIV infection 
-Felty’s syndrome 
-immune destruction due to SLE
-sepsis 
-hypersplenism