Table 2 Clinicopathological variables and their correlation with immunohistochemical expression of HER2 in primary tumours
Clinicopathological variables | Ovarian metastasis CRC patients | Non-Ovarian metastasis CRC patients | |||||
|---|---|---|---|---|---|---|---|
Total | Positive [n (%)] | P′ | Total | Positive [n (%)] | P″ | ||
Total | 22 | 12 (54.5) | – | 22 | 8 (36.4) | – | |
Age | |||||||
≤ 55 | 15 | 9 (60.0) | 0.652 | 8 | 1 (12.5) | 0.167 | |
> 55 | 7 | 3 (42.9) | 14 | 7 (50.0) | |||
Primary tumour location | |||||||
Colon | 17 | 9(52.9) | 1.000 | 11 | 2 (18.2) | 0.183 | |
Rectum | 5 | 3 (60.0) | 11 | 6 (54.5) | |||
Differentiation | |||||||
High | 2 | 2 (100) | 0.476 | 1 | 1 (100) | 0.364 | |
Mid-Low | 19 | 9 (47.4) | 21 | 7 (33.3) | |||
unknown | 1 | 1 (100) | 0 | ||||
Positive lymph node | |||||||
0 | 5 | 4 (80.0) | 0.150 | 8 | 2 (25.0) | 0.853 | |
1~3 | 6 | 5 (83.3) | 9 | 4(44.4) | |||
≥ 4 | 9 | 3 (33.3) | 5 | 2 (40.0) | |||
unknown | 2 | 0 (0.0) | |||||
Tumour diameters | |||||||
≤ 5 cm | 11 | 7 (63.6) | 0.653 | 15 | 5 (33.3) | 1.000 | |
> 5 cm | 9 | 4 (44.4) | 7 | 3 (42.9) | |||
unknown | 2 | 0 | |||||
Vascular cancer embolus | |||||||
Yes | 9 | 3 (33.3) | 0.192 | 9 | 5 (55.6) | 0.203 | |
No | 13 | 9 (69.2) | 12 | 3 (25.0) | |||
unknown | 0 | 0 (0.0) | 2 | 0 (0.0) | |||