Table 1 Characteristics of conventional ultrasound in benign and malignant lesions of testis
Conventional ultrasound | Benign testicular lesions group | Malignant testicular tumors group | p-value |
|---|---|---|---|
Age (years), mean ± SD | 38.8 ± 14.9 | 47.4 ± 14.8 | 0.101 |
Lesion size (cm), mean ± SD | 1.9 ± 0.9 | 4.6 ± 1.9 | 0.000 |
Boundary, n | Â | Â | Â |
 Clear | 11 | 21 | 0.609 |
 Unclear | 2 | 2 |  |
Echoes, n | Â | Â | Â |
 Hypoechoic | 10 | 20 | 0.146 |
 Isoechoic | 3 | 1 |  |
 Cystic and solid mixed echoes | 0 | 2 |  |
Shape, n | Â | Â | Â |
 Round or oval | 11 | 18 | 1.000 |
 Irregular | 2 | 5 |  |
Echo distribution, n | Â | Â | Â |
 Homogenous | 4 | 2 | 0.161 |
 Heterogenous | 9 | 21 |  |
Blood flow, n | Â | Â | Â |
 None | 4 | 0 | 0.001 |
 Perforating vessels | 0 | 8 |  |
 Peripheral annular | 3 | 0 |  |
 Irregular | 6 | 15 |  |