Sandbox:MDS2

Inherited cytopenia	Acquired cytopenia	Reactive cytopenia
Aplastic anemia Fanconi anemia Pure red cell aplasia Shwachman-Diamond syndrome Large granular lymphocytosis Congenital hematopoietic disorder Congenital dyserythropoietic anemia	Paroxysmal nocturnal hemoglobinuria Parovirus B19 infection Myeloproliferative neoplasms Toxic exposures Biologic agents Heavy metals Chemotherapy	Nutritional deficiency Vitamin B12 defeciency Folate defeciency Infections

Risk Factors
Tobacco smoke
Ionizing radiation
Organic chemicals
Herbicides
Pesticides
Fertilizers
Stone and cereal dusts
Exhaust gases
Nitro-organic explosives
Petroleum and diesel derivatives