Table 3.
Comparison of current guidelines for ground-glass and part-solid nodule management [27].
| Nodule Dimensions |
The Fleischner Society [19] |
American College of Chest Physicians [24] |
British Thoracic Society [25] | Lung CT Screening Reporting and Data System * [26] |
|---|---|---|---|---|
| <6 mm | <6 mm, GG or PS, no FU; if multiple, 3–6 mo LDCT FU |
<6 mm, GG, no FU | <5 mm, no FU | 30 mm or more, GG, AS (cat 2) 6 mm, PS, AS (cat 2) if new 6 mo LDCT (cat 3) |
| ≥6 mm to 8 mm | ≥6 mm, GG, 6–12 mo FU; PS, 3–6 mo FUIf multiple, 3–6 mo FU |
≥6 mm GG, 12 mo FU; PS, ≤8 mm, 3, 12, and 24 mo FU |
≥5 mm, 3-mo LDCT than re-evaluate | ≥30 mm, GG or new 6 mo LDCT (cat 3) 6–8 mm, PS, 3 mo LDCT (cat 4A) |
| ≥8 mm | / | If solid, 3 mo FU | / | ≥8 mm, PS, (cat 4B) |
* Lung-RADS® version 1.1; assessment categories release date: 2019. GG = ground glass; PS = part solid; mo = months; FU = follow-up; AS = annual screening; cat = category; LDCT = low-dose computed tomography.