The Clinical Characteristics and CT Findings of Parotid and Submandibular Gland Tumours
Table 1
Clinical characteristics and CT findings of PAs, WTs, and MTs.
PAs (N = 38)
WTs (N = 27)
MTs (N = 29)
value
Location
Parotid
28 (73.7%)
27 (100%)
23 (79.3%)
Superficial lobe
20 (71.4%)
17 (63%)
15 (65.2%)
Deep lobe
8 (28.6%)
10 (37%)
8 (34.8%)
Submandibular gland
10 (26.3%)
0 (0)
6 (20.7%)
Gender
Male
10 (26.3%)
25 (92.6%)
19 (65.5%)
;;
Female
28 (73.7%)
2 (7.4%)
10 (34.5%)
Age
43.4 ± 12.1
62.1 ± 11.7
58 ± 14.18
;;
Mean diameter
2.2 ± 0.8 cm
2.0 ± 0.5 cm
3.1 ± 1.8 cm
;;
Short axis
2.1 ± 0.8 cm
1.9 ± 0.4 cm
2.7 ± 1.4 cm
Long axis
2.3 ± 0.8 cm
2.1 ± 0.5 cm
3.4 ± 2.1 cm
Shape
Rounded
25 (65.8%)
19 (70.4%)
5 (17.2%)
;;
Lobulated/irregular
13 (34.2%)
8 (29.6%)
24 (82.8%)
The boundary
Well defined
30 (78.9%)
24 (88.9%)
4 (13.8%)
;;
Ill defined
8 (21.1%)
3 (11.1%)
25 (86.2%)
Mean CT value (plain)
39.2 ± 3.9 HU
39.1 ± 3.0 HU
37.6 ± 3.1 HU
;;
Mean CT value (contrast)
53.5 ± 4.0 HU
84.4 ± 6.0 HU
65.2 ± 3.8 HU
;;
∆CT values
14.4 ± 3.0 HU
45.3 ± 4.5 HU
27.7 ± 2.5 HU
;;
Note: represents the value between PAs and WTs, represents the value between PAs and MTs, and represents the value between WTs and MTs. Percentages are in parentheses.
