Table 4.
Sonographic features of adnexal masses in 529 women treated in two institutions.
| Variables included in IOTA ADNEX model | Benign | borderline | Malignant | P |
|---|---|---|---|---|
| Age (years) | 47.4±13.4 | 51.0±13.6 | 56.5±11.3 | <0.001 |
| Ascites | 11(3.0) | 2(3.0) | 43(46.7) | <0.001 |
| Maximal diameter of the lesion (mm) | 118.1±58.8 | 122.2±46.6 | 157.4±73.4 | <0.001 |
| Maximal diameter of the largest solid part (mm) | 34.3±29.2 | 55.6±28.0 | 93.0±48.9 | <0.001 |
| >10 locules | 52(14.1) | 11(16.4) | 28(30.4) | 0.001 |
| Number of papillary projections | NA | |||
| 0 | 346(93.5) | 45(67.2) | 75(81.5) | |
| 1 | 10(2.7) | 12(17.9) | 7(7.6) | |
| 2 | 4(1.1) | 3(4.5) | 0(0) | |
| 3 | 6(1.6) | 0(0) | 3(3.3) | |
| >3 | 4(1.1) | 7(10.4) | 7(7.6) | |
| Acoustic shadows | 89(24.1) | 2(3.0) | 1(1.1) | <0.001 |
Data are given as mean ± SD or n (%). Groups compared using McNemar’s exact χ2, one-way analysis of variance or Kruskal–Wallis test, if appropriate. Max, maximum; NA, not applicable.