Table 3.
Immunohistochemical differences in carotid body tumors with cervical lymph node metastasis.
| Patient | S100 (sustentacular cells) | CgA | Syn | PCK | EMA | SDHB | NSE | Ki67 |
|---|---|---|---|---|---|---|---|---|
| Case 1 | + | + | + | − | − | − | + | +, ≤5% |
| Case 2 | + | + | + | − | − | + | + | +, 6% |
| Case 3 | − | + | − | − | − | − | − | +, 30% |
| Case 4 | + | + | + | − | − | + | + | +, 10% |
| Case 5 | + | + | + | − | − | + | − | +, 7% |
| Case 6 | + | + | + | − | − | + | − | +, 20% |
| Case 7 | − | + | + | − | − | − | + | +, ≤5% |
| Case 8 | − | + | + | − | − | + | − | +, ≤5% |
| Case 9 | + | + | + | − | − | + | + | +, ≤5% |
| Case 10 | + | + | + | − | − | + | + | +, 11% |
+: positive; −: negative.
CgA = chromogranin; EMA = epithelial membrane antigen; PCK = pancytokeratin; SDHB = succinate dehydrogenase B; Syn = synaptophysin; NSE = neuron-specific enolase.