Table 2. The correlation between the expression of IHC stain and genetic mutation.
| IHC stain | Genetic mutation | P value | |
| No n (%) | Yes n (%) | ||
| E-cadherin (CDH1) | 0.021 | ||
| Negative | 0 | 1 (11.1) | |
| Positive | 47 (100) | 8 (88.9) | |
| MACF1 | <0.001 | ||
| Negative | 0 | 7 (58.3) | |
| Positive | 44 (100) | 5 (41.7) | |
| P53 | <0.001 | ||
| Negative | 3 (8.8) | 14 (63.6) | |
| Positive | 31 (91.2) | 8 (36.4) | |
| PLB1 | <0.001 | ||
| Negative | 1 (2.1) | 8 (100) | |
| Positive | 47 (97.9) | 0 | |
| ARID1A | <0.001 | ||
| Negative | 1 (2.8) | 12 (60.0) | |
| Positive | 35 (97.2) | 8 (40.0) | |
| KMT2C | <0.001 | ||
| Negative | 1 (2.4) | 11 (73.3) | |
| Positive | 40 (97.6) | 4 (26.7) | |
| FAT4 | <0.001 | ||
| Negative | 2 (4.7) | 6 (46.2) | |
| Positive | 41 (95.3) | 7 (53.8) | |
| KMT2D | <0.001 | ||
| Negative | 0 | 8 (44.4) | |
| Positive | 38 (100) | 10 (55.6) | |
Abbreviation: IHC: immunohistochemical.