Table 1 The comparative analysis on qualitative features of ROs and RCCs
Variables | ROs (n = 23) | CcRCCs (n = 85) | P value | Non-ccRCC (n = 24) | P value |
|---|---|---|---|---|---|
Location | |||||
Left kidney Right kidney | 10(43.48) 13(56.52) | 45(52.94) 40(47.06) | 0.421 | 15(62.50) 9(37.50) | 0.191 |
Growth pattern | |||||
Endophytic Exophytic | 10(43.48) 13(56.52) | 27(31.76) 58(68.24) | 0.294 | 10(41.67) 14(58.33) | 0.900 |
Typical stellate pattern | |||||
Present Absent | 10(43.48) 13(56.52) | 21(24.71) 64(75.29) | 0.077 | 4(16.67) 20(83.33) | 0.045 |
Enhancement inversion | |||||
Complete Incomplete None | 15(65.22) 8(34.78) 0 | 21(24.71) 51(60.00) 13(15.29) | 0.001 | 4(16.67) 15(62.50) 5(20.83) | 0.001 |
Calcification(CHA) | |||||
Present Absent | 3(13.04) 20(86.96) | 4(4.71) 81(95.29) | 0.150 | 2(8.33) 22(91.67) | 0.601 |
Persistent low sign | |||||
Present Absent | 2(8.70) 21(91.30) | 32(37.65) 53(62.35) | 0.008 | 7(29.17) 17(70.83) | 0.075 |
Calcification(PTP) | |||||
Present Absent | 0 23(100.00) | 6(7.06) 79(92.94) | 0.190 | 7(29.17) 17(70.83) | 0.005 |
Pseudocapsule sign | |||||
Present Absent | 7(30.43) 16(69.57) | 35(41.18) 50(58.82) | 0.349 | 8(33.33) 16(66.67) | 0.831 |