Table 2 The US characteristics of MTMCs and PTMCs on Univariate Analysis
Parameter | MTMC (N = 46) | PTMC (N = 136) | P |
|---|---|---|---|
Location | 0.86 | ||
Upper pole | 24/52.17% | 73/53.68% | |
Lower pole | 22/47.83% | 63/46.32% | |
Shape | 0 | ||
Ovoid to round | 25/54.35% | 13/9.56% | 0 |
Taller than wide | 9/19.57% | 81/59.56% | 0 |
Irregular | 12/26.09% | 42/30.88% | 0.538 |
Boundary | 0 | ||
Clear | 26/56.52% | 19/13.97% | |
Unclear | 20/43.48% | 117/86.03% | |
Margin | 0.101 | ||
Smooth | 17/36.96% | 37/27.21% | 0.211 |
Spiculated | 10/21.74% | 53/38.97% | 0.034 |
Poorly defined | 19/41.30% | 46/33.82% | 0.36 |
Peripheral halo ring | 0.595 | ||
Absent | 41/95.65% | 133/97.79% | |
Present | 2/4.35% | 3/2.21% | |
Echogenicity | 0.727 | ||
Marked hypoechoic | 10/21.74% | 33/24.26% | |
Hypoechoic | 36/78.26% | 103/75.74% | |
Hyperechoic or isoechoic | 0 | 0 | |
Composition | 0.004 | ||
Solid | 40/86.96% | 134/98.53% | |
> 50% solid | 6/13.04% | 2/1.47% | |
Calcification | 0.002 | ||
Absent | 31/67.39% | 87/63.97% | 0.674 |
Microcalcification | 5/10.87% | 40/29.41% | 0.012 |
Macrocalcification | 10/21.74% | 9/6.62% | 0.004 |
Vascularity | 0.000 | ||
Avascularity | 19/41.30% | 109/80.15% | |
Hypervascularity | 27/58.70% | 27/19.85% |