Surgical outcomes of one-stage resection for synchronous multiple primary lung adenocarcinomas with no less than three lesions

Table 2 Clinical data of tumors

Variables	Number(%)	Mean value
Total number of tumors	95
Tumor characteristics (mm)
pGGO	43 (45.3)	9.60 ± 4.23
mGGO	39 (41.1)	16.37 ± 6.35
SN	13 (13.6)	24.01 ± 11.67
Tumor type pattern per patient
Multiple pGGO	5 (17.9)
Multiple mGGO	3 (10.7)
pGGO + mGGO	13 (46.4)
SN + GGO	4 (14.3)
Multiple SN	3 (13.7)
Location of tumors
RUL	44 (46.3)
RML	14 (14.7)
RLL	12 (12.6)
LUL	17 (17.9)
LLL	8 (8.5)
Location of lobe
Same lobe	6 (21.4)
Different lobe	2 (7.1)
Combined lobe^a	20 (71.5)
Size of tumors (mm)		15.89 ± 8.97
≤ 10 mm	52 (54.7)
< 10 mm, ≤ 20 mm	32 (33.7)
> 20 mm	11 (11.6)
Histology in all tumors
AIS	27 (28.4)
MIA	17 (17.9)
IA (WD/MD/PD)	51 (9/36/6)(53.7)
EGFR in tumors per patient
WT	6 (21.4)
Mutation	22 (72.6)

SN, solid nodule; pGGO, pure ground-glass opacity; mGGO, mixed ground-glass opacity;
RUL, right upper lobe; RML, right middle lobe; RLL, right lower lobe; LUL, left upper lobe; LLL, Left lower lobe; ^aMore than 2 cancers, at least 2 tumors were located at the same lobe and the other or others located at the different; AAH, atypical adenocarcinoma hyperplasia; AIS, adenocarcinoma in situ; MIA, minimally invasive adenocarcinoma; IA, invasive adenocarcinoma; WD, well-differentiated; MD, moderately-differentiated; PD, poorly differentiated

ISSN: 1749-8090