Table 2 Comparison of MRI features between CCC and HGSC

Shape

<0.001

12.5 (4.8 ~ 32.4)

 Oval

30 (75 %)

12 (19 %)

 Irregular

10 (25 %)

50 (81 %)

Configuration

<0.001

0.2 (0.1 ~ 0.4)

 Cystic

21 (53 %)

8 (13 %)

 Cystic-solid

8 (20 %)

21 (34 %)

 Solid

11(27 %)

33 (53 %)

Unilocular

23/29 (79 %)

7/31 (23 %)

<0.001

19.9 (5.4 ~ 74.1)

Papillary projections

26 (70 %)

31 (50 %)

0.073

——

Size of papillary projection^a

5.13 ± 0.4

2.91 ± 0.3

<0.001

9.5(1.2 ~ 88.4)

T1-hyperintense cystic component

18/29 (62 %)

5/29 (17 %)

<0.001

8.5 (2.5 ~ 28.7)

Enhancement

0.717

——

 Mild

2 (5 %)

2 (3 %)

 Moderate

7 (17 %)

8 (13 %)

 Prominent

31 (78 %)

52 (84 %)

Peritoneal implantation^b

1 (3 %)

12 (30 %)

0.001

0.1 (0.01 ~ 0.7)

Lymphadenopathy^b

7 (19 %)

8 (20 %)

0.905

——

Ascites^b

13 (35 %)

32 (85 %)

<0.001

0.2 (0.5 ~ 0.4)