Pneumocystis carinii pneumonia complicating low dose methotrexate treatment for rheumatoid arthritis.

Abstract	Low dose methotrexate has been used effectively for various rheumatic and non-rheumatic diseases. Three cases of Pneumocystis carinii pneumonia occurring during treatment of rheumatoid arthritis with low dose methotrexate are presented. Several mechanisms might contribute to impaired immunity and the rare development of opportunist lung infection with methotrexate. A high degree of suspicion may result in earlier diagnosis and treatment.
Authors	A Wollner, J Mohle-Boetani, R E Lambert, J L Perruquet, T A Raffin, J L McGuire
Journal	Thorax (Thorax) Vol. 46 Issue 3 Pg. 205-7 (Mar 1991) ISSN: 0040-6376 [Print] England
PMID	2028435 (Publication Type: Case Reports, Journal Article, Review)
Chemical References	Methotrexate
Topics	Adolescent Aged Arthritis, Rheumatoid (complications, drug therapy, immunology) Female Humans Methotrexate (administration & dosage, therapeutic use) Middle Aged Opportunistic Infections (complications) Pneumonia, Pneumocystis (complications)

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