Table 1.
Baseline characteristics of two groups
| Patient and clinical characteristics | OE with benign mural nodules | EAOC | P value |
|---|---|---|---|
| Number | 42 | 40 | |
| Pathology | Blood clot (n = 33) Atypical feature (n = 3) Adenofibroma (n = 2) Fibrothecoma (n = 2) Papillary proliferation (n = 2) |
Clear cell carcinoma (n = 22), Endometrioid carcinoma (n = 11) Serous carcinoma (n = 3), Mucinous carcinoma (n = 2), Undifferentiated carcinoma (n = 1), Transitional carcinoma (n = 1) |
|
| FIGO stage | – | I (n = 35), II (n = 0), III (n = 3),IV (n = 2) | |
| Age at diagnosis, mean ± SD | 39.1 ± 10.3 | 54.3 ± 8.9 | <0.001 |
| Median (range) | 39 (26 – 68) | 52 (39 – 75) | |
| Nulliparous n (%) | 21 (50) | 16 (40) | 0.55 |
| Premenopause n (%) | 38 (90.5) | 14 (35) | <0.001 |
| CA125 (IU/l) | |||
| Mean ± SD | 86.8 ± 99.4 | 992.5 ± 3166 | 0.07 |
| Median (range) | 34.5 (6 – 437) | 60.5 (7 – 15451) | |
| The size of a cyst (cm)* | |||
| Mean ± SD | 6.6 ± 3.2 | 10.9 ± 3.9 | <0.001 |
| Median (range) | 5.9 (2.5 – 19.1) | 10.4 (2.9 – 19) | |
| Height (cm), mean ± SD | 0.7 ± 0.3 | 3.7 ± 2.3 | <0.001 |
| Median (range) | 0.7 (0.2 – 1.6) | 3.3 (1 – 10.8) | |
| Width (cm), mean ± SD | 1.5 ± 1.0 | 3.5 ± 2.3 | |
| Median (range) | 1.2 (0.5 – 4.9) | 2.9 (0.9 – 10.6) | <0.001 |
| HWR of mural nodule, | |||
| Mean ± SD | 0.5 ± 0.2 | 1.1 ± 0.2 | <0.001 |
| Median (range) | 0.56 (0.20 – 0.68) | 1.09 (0.47 – 1.63) | |
| Location (%) | |||
| AUQ | 2 (4.8) | 9 (22.5) | <0.001 |
| ALQ | 2 (4.8) | 16 (40) | |
| PUQ | 8 (19) | 3 (7.5) | |
| PLQ | 30 (71.4) | 12 (30) | |
| Signal intensity of cystic part (%) | |||
| On T1WI | |||
| Low | 0 (0) | 13 (32.5) | <0.001 |
| Intermediate | 4 (9.5) | 13 (32.5) | |
| High | 38 (90.5) | 14 (35) | |
| On T2WI | |||
| Low | 3 (7.1) | 0 (0) | 0.009 |
| Intermediate | 13 (31) | 3 (7.5) | |
| High | 26 (61.9) | 37 (92.5) | |
| Shading n (%) | 27 (64.3) | 7 (14) | <0.01 |
*
Maximum diameter of the cyst. ALQ, anterior lower quadrant; AUQ, anterior upper quadrant; FIGO, Federation of Gynecology and Obstetrics; PLQ, posterior lower quadrant; PUQ, posterior upper quadrant; SD, standard deviation; T1WI, T1weighted image; T2WI, T2weighted image.