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Table 1 Score systems of fibrosis and emphysema

From: Clinical outcomes and risk factor of immune checkpoint inhibitors-related pneumonitis in non-small cell lung cancer patients with chronic obstructive pulmonary disease

 

Fibrosis score(F score)

Emphysema score (E score)

0

No fibrosis

No low attenuation areas (LAAs)

1

Interlobular septal thickening; no discrete honeycombing

Sparse, scattered small LAAs up to 5 mm in diameter

2

Honeycombing (with or without septal thickening) involving < 25% of the lobe

Adjacent LAAs up to 10 mm in diameter

3

Honeycombing (with or without septal thickening) involving 25–49% of the lobe

LAAs > 10 mm that were adjacent to or indispensable from each other

4

Honeycombing (with or without septal thickening) involving 50–75% of the lobe

Absence of normal lung parenchyma

5

Honeycombing (with or without septal thickening) involving > 75% of the lobe

NA

  1. LAAs, low attenuation areas