Methotrexate-induced hypersensitivity pneumonitis in a child with juvenile rheumatoid arthritis.

摘要

Low-dose methotrexate, widely used for juvenile rheumatoid arthritis, has been reported to cause pneumonitis in adults. We report on methotrexate-induced hypersensitivity pneumonitis in a child with juvenile rheumatoid arthritis. Physicians should be aware of this rare complication.