Table 2.

Clinical, microbiological, and radiological characteristics of pulmonary NTM disease occurring in patients receiving biological therapy for RA

Case no.	Clinical symptoms	NTM species isolated	Preexisting CT abnormalitiesa	CT patterns
1	Asymptomatic	M. intracellulare	Bronchiolitis + bronchiectasis	Nodular/bronchiectatic form
2	Asymptomatic	M. avium	Bronchiolitis	Pulmonary nodules
3	Common-cold-like	M. avium	NA	Cavitary form
4	Sputum production	M. abscessus	Bronchiolitis + bronchiectasis	Nodular/bronchiectatic form
5	Cough	M. avium	Bronchiolitis	Nodular/bronchiectatic form
6	Asymptomatic	M. avium	Bronchiolitis	Pulmonary nodules
7	Asymptomatic	M. avium	Nodule	Cavitary form
8	Cough, hemoptysis	M.intracellulare	Bronchiolitis + bronchiectasis	Nodular/bronchiectatic form
9	Cough	M. avium	Bronchiolitis + bronchiectasis	Nodular/bronchiectatic form
10	Fever	M. avium	Calcified nodule	Alveolar infiltrate
11	Asymptomatic	M. avium	Bronchiolitis + calcified nodule	Alveolar infiltrate
12	Cough, sputum production	M. avium	Bronchiolitis	Alveolar infiltrate
13	Cough, sputum production	M. intracellulare	Bronchiolitis + bronchiectasis	Nodular/bronchiectatic form

NTM nontuberculous mycobacteria, RA rheumatoid arthritis, CT computed tomography, NA not available

^aPreexisting CT abnormalities represent those in the area from which NTM disease had spread