Table 3.
Immunohistochemical staining of undifferentiated liver embryonal sarcoma tissue in 4 adults
| Antibody | Case 1 | Case 2 | Case 3 |
Case 4 |
|
| Primary | Recurrent | ||||
| Age (yr)/sex | 63/M | 39/M | 56/M | 43/F | 44/F |
| Vimentin | + | + | + | + | + |
| α-1-antitrypsin | + | + | + | + | + |
| Cytokeratin 18 | +F | +F | - | +F | +F |
| Cytokeratin 19 | +F | +F | - | +F | +F |
| CD68 | + | + | + | + | + |
| CD56 | + | + | + | + | + |
| Desmin | - | +F | +F | - | +F |
| α-SMA | - | - | - | - | +F |
| Myoglobin | - | - | - | - | +F |
| CD117 | - | - | - | - | - |
| S-100 | - | - | - | - | +F |
| CD34 | - | - | - | - | +F |
| HMB45 | - | - | - | - | - |
| Hep Par 1 | - | - | - | - | - |
| AFP | - | - | - | - | - |
| HBsAg | - | - | - | - | - |
| p53 | - | - | + | + | + |
| pCEA | - | - | - | - | - |
| mCEA | - | - | - | - | - |
| EMA | - | - | - | - | - |
| NSE | - | - | - | - | - |
| Chromogranin A | - | - | - | - | - |
| Synaptophysin | - | - | - | - | - |
| Ki67 | 60% | 50% | 45% | 40% | 65% |
+F: Focal staining; AFP: α-fetoprotein; SMA: Smooth muscle actin; HBsAg: Hepatitis B virus surface antigen; EMA: Epithelial membrane antigen; NSE: Neuron specific enolase; pCEA: Polyclonal carcinoembryonic antigen; mCEA: Monoclonal carcinoembryonic antigen.