Table 2.
The comparison of conventional ultrasound features between PHNET and NBNC-HCC.
| Variable | PHNET (n=14) | NBNC-HCC (n=28) | P value |
|---|---|---|---|
| Location | 0.637 | ||
| Right liver | 9 (64.3%) | 20 (71.4%) | |
| Left liver | 5 (35.7%) | 8 (28.6%) | |
| Tumor size (range, cm) | 10.1 ± 4.7 (2.0-14.4) | 5.9 ± 3.8 (1.5-17.0) | 0.006 |
| Tumor number | 0.770 | ||
| Solitary | 12 (85.7%) | 23 (82.1%) | |
| Multiple | 2 (14.3%) | 5 (17.9%) | |
| Morphology | 0.513 | ||
| Regular | 6 (42.9%) | 15 (53.6%) | |
| Irregular | 8 (57.1%) | 13 (46.4%) | |
| Tumor borders | 0.827 | ||
| Well-defined | 7 (50.0%) | 13 (46.4%) | |
| Ill-defined | 7 (50.0%) | 15 (53.6%) | |
| Echogenicity | 0.001 | ||
| Hypoechoic | 6 (42.9%) | 25 (89.3%) | |
| Hyperechoic | 4 (28.6%) | 3 (10.7%) | |
| Mixed echoic | 4 (28.6%) | 0 | |
| Lesions with calcification | 3 (21.4%) | 0 | 0.034 |
| Color Doppler signal | 0.798 | ||
| rare | 11 (78.6%) | 21 (75.0%) | |
| rich | 3 (21.4%) | 7 (25.0%) | |
| Tumor in vein | 0 | 1 (3.6%) | 0.474 |
| Liver background | 0.710 | ||
| Homogeneous | 13 (92.9%) | 25 (89.3%) | |
| Heterogeneous | 1 (7.1%) | 3(10.7%) |
PHNET, primary hepatic neuroendocrine tumors; NBNC-HCC, hepatocellular carcinoma with negative for hepatitis B virus surface antigen and hepatitis C antibody. Unless otherwise stated, data are numbers of patients, with percentage in parentheses.