Skip to main content
. 2017 Apr 6;8(3):260–270. doi: 10.1111/1759-7714.12436

Table 6.

Comparison of EGFR exon mutations based on CT findings

Variable EGFR mutation status P
19 deletion (n = 41) L858R (n = 54)
Diameter (mm) 19.46 ± 5.61 19.51 ± 6.43 0.965
Shape
Round/oval 8 16 0.261
Irregular 33 38
Border definition
Well defined 23 29 0.816
Poorly defined 18 25
Margins
Smooth 12 25 0.092
Lobulated/spiculated 29 29
Cavitation/bubble‐like lucency
+ 10 13 0.972
31 41
Air bronchogram
+ 12 21 0.329
29 33
Thickening of the adjacent pleura
+ 5 8 0.713
36 46
Pleural retraction
+ 25 26 0.214
16 28
Vascular convergence
+ 8 7 0.386
33 47
Lymphadenopathy
+ 8 6 0.253
33 48
GGO proportion
GGO negative 25 32 0.866
Any GGO 16 22
Lobe
Upper lobes 33 51 0.229
Lower lobes 17 16

CT, computed tomography; EGFR, epidermal growth factor receptor; GGO, ground‐glass opacity.