TABLE 4

Chest computed tomography (CT) scan and pathology findings for patients with and without obstruction on pulmonary function testing

ObstructionNo obstructionOverall
Patients27 (61)17 (39)44 (100)
Chest CT scan findings
 Diffuse nodules26 (96)16 (94)42 (95)
 Mosaic attenuation22 (82)11 (65)33 (75)
 Emphysema2 (7)0 (0)2 (5)
 Interstitial fibrosis3 (11)1 (6)4 (9)
Biopsy findings (n=42)
 Carcinoid tumourlets22 (81)12 (75)34 (77)
 Constrictive bronchiolitis12 (44)9 (53)21 (50)
 Carcinoid tumour7 (26)9 (53)16 (36)
 Granuloma2 (7)5 (29)7 (16)
 Emphysema5 (19)1 (6)6 (14)
 Organising pneumonia0 (0)3 (18)3 (7)
 NSIP1 (4)0 (0)1 (2)
 Respiratory bronchiolitis1 (4)0 (0)1 (2)

Data are presented as n (%). NSIP: nonspecific interstitial pneumonitis.