Probable cyst (n = 186) | Indeterminate lesion (n = 18) | |
---|---|---|
Size, mma | 24 (18–33) | 39 (22–54) |
Morphologic feature | ||
Unilocular and nonlobulated | 140 (75.3) | 8 (44.4) |
Unilocular and lobulated | 34 (18.3) | 2 (11.1) |
Multilocular and lobulated | 12 (6.5) | 8 (44.4) |
T2-weighted image | ||
High signal intensity | 186 (100.0) | 16 (88.9) |
Intermediate or low signal intensity | 0 (0) | 2 (11.2) |
Signal intensity, mean | ||
Meana | 201.8 (138.5–354.2) | 163.6 (111.9–208.1) |
SDa | 44.0 (32.2–60.7) | 54.1 (32.7–109.7) |
Pre-contrast T1-weighted image | ||
High signal intensity | 62 (33.3) | 13 (72.2) |
Low or intermediate signal intensity | 124 (66.7) | 5 (27.8) |
Signal intensity | ||
Meana | 150.0 (99.1–223.5) | 163.3 (139.8–262.1) |
SDa | 24.6 (17.2–39.7) | 47.5 (18.0–64.5) |
Diffusion-weighted image | ||
No restriction | 186 (100.0) | 14 (77.8) |
Diffusion restriction | 0 (0) | 4 (22.2) |
ADC value | ||
Meana | 3.1 (2.7–3.6) | 1.8 (1.4–2.5) |
SDa | 0.3 (0.2–0.5) | 0.4 (0.2–0.6) |
Contrast-enhanced T1-weighted image | ||
No enhancement | 140 (75.3) | 0 (0) |
Thin and smooth wall enhancement | 46 (24.7) | 3 (16.7) |
Eccentric enhancing wall thickening | 0 (0) | 13 (72.2) |
Nodular enhancement | 0 (0) | 8 (44.4) |