Methotrexate induced early onset pancytopenia in rheumatoid arthritis: drug allergy? Idiosyncrasy?

MeSH terms

• Aged
• Arthritis, Rheumatoid / drug therapy*
• Drug Hypersensitivity / etiology*
• Female
• Humans
• Methotrexate / adverse effects*
• Methotrexate / therapeutic use*
• Middle Aged
• Pancytopenia / chemically induced*
• Pancytopenia / immunology