Radiological and Clinical Features and Outcomes of Patients with Primary Pulmonary Salivary Gland-Type Tumors
Table 2
CT features of SGT.
Variable
No. of patients (%)
$
All patients
EMC
MEC
ACC
Location
0.001
Trachea, main bronchi
18 (56.3)
1
4 (25)
13 (86.7)
Other locations
14 (43.8)
0
12 (75)
2 (13.3)
Median size# (cm, range)
2.0 (18–68)
1.1
2.3 (18–66)
1.7 (22–68)
0.912
Homogeneous
0.149
Yes
19 (59.4)
1
7 (43.8)
11 (73.3)
No
13 (40.6)
0
9 (56.3)
4 (26.7)
Margin definition
0.073
Well defined
19 (59.4)
1
12 (75)
6 (40)
Poorly defined
13 (40.6)
0
4 (25)
9 (60)
Shape
0.002
1
20 (62.5)
0
6 (37.5)
14 (93.3)
2
12 (37.5)
1
10 (63.5)
1 (6.7)
Enhancement degree
0.001
Mild or moderate
15 (46.9)
—
5 (33.3)
10 (90.1)
Evident
11 (34.4)
—
10 (66.7)
1 (9.9)
Lymphadenopathy
1.000
Yes
6 (18.8)
0
2 (14.3)
4 (26.7)
No
26 (81.3)
1
14 (87.5)
11 (73.3)
Suspected metastasis
1.000
Yes
2 (6.3)
0
1 (6.3)
1 (6.7)
No
30 (93.8)
1
15 (93.7)
14 (93.3)
Airway obstruction
0.012
Yes
16 (50)
0
12 (75)
4 (26.7)
No
16 (50)
1
4 (25)
11 (73.3)
MEC, mucoepidermoid carcinoma; ACC, adenoid cystic carcinoma. #the largest diameter of the tumor. Shape type: 1, circumferential thickening or lobulated; 2, round or oval. $ values for comparisons between MEC and ACC for each variable.
