Table 3.
Imaging characteristics of urachal carcinoma and urachal infection.
| Urachal carcinoma (n=13) | Urachal infection(n=14) | p | Kappa | |
|---|---|---|---|---|
| Size (mean ± SD, cm) | 3.9 ± 1.7 | 3.7 ± 2.9 | 0.797 | |
| Location | 0.440 | 1.000 | ||
| dome or anterior wall of the bladder | 6 | 4 | ||
| Urachus | 7 | 10 | ||
| Shape | 0.449 | 0.922 | ||
| Round or oval | 7 | 5 | ||
| lobulated or irregular | 6 | 9 | ||
| Margin | 0.449 | 0.847 | ||
| Well-defined | 7 | 5 | ||
| Ill-defined | 6 | 9 | ||
| Lesion composition | 0.459 | 0.864 | ||
| Solid | 4 | 3 | ||
| Mainly solid | 4 | 4 | ||
| Mainly cystic | 5 | 4 | ||
| Cystic | 0 | 3 | ||
| Calcification | 0.048* | 1.000 | ||
| Present | 5 | 0 | ||
| Absent | 1 | 3 | ||
| Missing | 7 | 11 | ||
| T1 Signal intensity | 0.196 | 0.885 | ||
| Very low | 4 | 1 | ||
| Low | 4 | 9 | ||
| Iso | 4 | 4 | ||
| High | 1 | 0 | ||
| T2 Signal intensity | 0.555 | 0.697 | ||
| Low | 0 | 0 | ||
| Iso | 1 | 0 | ||
| High | 6 | 9 | ||
| Very high | 6 | 5 | ||
| Enlarged or increased peripheral lymph nodes | 0.236 | 0.824 | ||
| Present | 6 | 3 | ||
| Absent | 7 | 11 | ||
| Degree of enhancement | 0.184 | 0.821 | ||
| Significant | 7 | 2 | ||
| Mild | 5 | 6 | ||
| No | 0 | 1 | ||
| Missing | 1 | 5 | ||
| Adjacent bladder wall thickened | 0.021* | 0.760 | ||
| Present | 2 | 6 | ||
| Absent | 11 | 8 |
Data are number of patients. SD, standard deviation. *Significant results.