| MR finding | Group 1 | Group 2 | Group 3 | Group 4 | |||
| Location (R:L) | 72:80 | 3:6 | 6:11 | 1:0 | |||
| Maximum diameter (mm) (mean ± SD) | 55.9 ± 23.6
(13 - 129) | 82.0 ± 38.6
(23 - 150) | 63.5 ± 23.5
(32 - 119) | 3.4 | |||
| Unilocular:Multilocular | 104:48 (68%:32%) | 5:4 (56%:44%) | 12:5 (71%:29%) | 1:0 (100%:0%) | |||
| T1-weighted image | Hyperintense | 152 (100%) | 6 (67%） | 17 (100%) | 1 (100%) | ||
| Isointense | 0 (0%) | 3 (33%） | 0 (0%) | 0 (0%) | |||
| Hypointense | 0 (0%) | 0 (0%) | 0 (0%) | 3.1 ± 0.7
(2.0 - 5.0) | 2.8 ± 0.4
(2.0 - 5.0) | 2.6 ± 0.8
(2.0 - 3.0) | 2.0 |
| Maximum thickness of septum (mean ± SD) (mm) | 2.9 ± 0.8
(1.0 - 5.0) | 3.2 ± 0.8
(2.0 - 4.0) | 3.2 ± 1.0
(2.0 - 5.0) | 0 | |||
| Mural nodules (numbers. of nodules) | 3 (7) (2.0%) | 9 (16) (100%) | 17 (22) (100%) | 0 (0%) | |||
| Numbers of mural nodules | Less than 5 | 3 | 8 | 17 | 0 | ||
| Not less than 5 | 0 | 1 | 0 | 0 | |||