Table 3. Radiological findings, characteristics and post-surveillance treatment strategy of NDN.
| Variables | Value |
|---|---|
| Total number of GGOs | 102 |
| Number of GGOs per patient [range] | 2.17±1.90 [1–10] |
| CT dimension in mm [range] | 15.00±8.46 [6–35] |
| Pathological dimension in mm [range] | 18.63±14.31 [5–55] |
| Localization (n=47) | |
| Ipsilateral lung | 9 (19.1%) |
| Bilateral or contralateral | 38 (80.9%) |
| Type of GGOs (n=47) | |
| Pure | 36 (76.6%) |
| Part-solid | 11 (23.4%) |
| Multiple GGOs (n=47) | |
| More than one | 17 (36.2%) |
| One | 30 (63.8%) |
| GGOs behaviour (per patients) (n=38) | |
| Non-evolved | 18 (47.4%) |
| Disappeared | 4 (10.5%) |
| Evolved | 16 (42.1%) |
| Treatment of evolved GGOs (n=16) | |
| None | 1 (5.6%) |
| Surgery | 13 (81.3%) |
| SBRT | 2 (11.1%) |
| Surgical procedure of evolved GGO (n=13) | |
| Lobectomy + wedge | 1 (6.3%) |
| Lobectomy | 4 (25%) |
| Segmentectomy | 1 (6.3%) |
| Wedge resection | 7 (43.8%) |
| Pathology (n=13) | |
| ADC acinar | 3 (23.1%) |
| MIA | 3 (23.1%) |
| ADC lepidic | 1 (7.7%) |
| ADC NOS | 1 (7.7%) |
| ADC mucinous | 1 (7.7%) |
| ADC papillary | 1 (7.7%) |
| ADC solid | 1 (7.7%) |
| Adenosquamous | 1 (7.7%) |
| AIS | 1 (7.7%) |
| New onset GGOs (n=47) | 7 (14.9%) |
NDN, non-dominant nodules; GGO, ground-glass opacity; SBRT, stereotactic body radiation therapy; ADC, adenocarcinoma; MIA, minimally invasive adenocarcinoma; NOS, not otherwise specified; AIS, adenocarcinoma in situ.