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Mycobacterium intracellulare Pulmonary Disease with Endobronchial Caseation in a Patient Treated with Methotrexate

Tuberculosis & Respiratory Diseases / Tuberculosis & Respiratory Diseases,
2013, v.75 no.1, pp.28-31
Jin Sun Park (Gachon University)
Eul Sik Jung (Gil Hospital)
Woosuk Choi (Gachon University Medicine and Science)
Soo Yong Park (Gachon University Medicine and Science)
Min Young Rim (Gachon University of Medicine and Science)
Inku Yu (Gachon University Medicine and Science)
Hyeonsu Park (Gachon University Medicine and Science)





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Abstract

Methotrexate (MTX) has been established as a standard disease-modifying anti-rheumatic drug. If adequate disease control is achieved for a reasonable period of time, tapering the MTX dosage is recommended because the chronic use of MTX can result in opportunistic infection. We present here a case of a woman with rheumatoid arthritis taking MTX, and the woman developed actively caseating endobronchial Mycobacterium intracellulare disease with pulmonary infiltrations. After discontinuing the MTX, the patient was able to tolerate 18 months of antimycobacterial treatment without flare ups of rheumatoid arthritis, and she completely recovered from nontuberculous mycobacterial respiratory disease.

keywords
Nontuberculous Mycobacteria, Tuberculosis, Pulmonary, Methotrexate, Arthiritis, Rheumatoid, Bronchial Diseaseseffectiveness

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Tuberculosis & Respiratory Diseases