Table 2.
Immunohistochemical features of 30 uterine carcinosarcomas
| Case No. | p53 | MMR | ARID1A | B‐catenin |
|---|---|---|---|---|
| 1 | Abnormal (loss) | Normal | Normal | Membranous |
| 2 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 3 | Abnormal (loss) | Normal | Normal | Membranous |
| 4 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 5 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 6 | Abnormal (loss) | Normal | Normal | Membranous & cytoplasmic |
| 7 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 8 | Abnormal (loss) | Normal | Normal | Membranous |
| 9 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 10 | Abnormal (diffuse) | Normal | Normal | Membranous & cytoplasmic |
| 11 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 12 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 13 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 14 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 15 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 16 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 17 | Abnormal (diffuse) | Normal | Normal | Membranous & cytoplasmic |
| 18 | Abnormal (loss) | Normal | Normal | Membranous |
| 19 | Normal | Normal | Normal | Membranous |
| 20 | Abnormal (diffuse) | Normal | Normal | Membranous & cytoplasmic |
| 21 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 22 | Abnormal (loss) | Normal | Normal | Membranous |
| 23 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 24 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 25 | Abnormal (diffuse) | Normal | Normal | Membranous |
| 26 | Normal | Normal | Normal | Membranous & cytoplasmic |
| 27 | Normal | Normal | Loss | Membranous |
| 28 | Normal | Normal | Normal | Membranous |
| 29 | Abnormal (diffuse) | Abnormal (Loss of MLH1 & PMS2) | Normal | Membranous |
| 30 | Normal | Normal | Loss | Membranous |
MMR: mismatch repair protein (MLH1, MSH2, MSH6 and PMS2).