Table 2 Pulmonary interstitial and parenchyma features between asbestosis and FHP on HRCT

n

204

74

–

Rounded opacities

10 (4.9)

0

0.067

Irregular and/or linear opacities

200 (98.0)

74 (100)

0.576

 Interlobular opacities

192 (94.1)

74 (100)

0.040

 Intralobular opacities

159 (77.9)

25 (33.8)

< 0.001

  Subpleural lines

56 (27.5)

9 (12.2)

0.008

  Subpleural dots

116 (56.9)

10(13.5)

< 0.001

 Honeycombing

19 (9.3)

6 (8.1)

0.756

Inhomogeneous attenuation

131(64.2)

69 (93.2)

< 0.001

 Ground glass opacity

123 (60.3)

69 (93.2)

< 0.001

 Mosaic attenuation

45(22.1)

15 (20.3)

0.749

 Three-density pattern

31 (15.2)

13 (17.6)

0.632

Emphysema

43 (21.1)

18 (24.3)

0.563

Traction bronchiectasis

48 (23.5)

24 (32.4)

0.134