Genetic findings and correlations to patient characteristics
| SDHD mutation (n = 11) | SDHB mutation (n = 3) | No mutation (n = 20) | |
|---|---|---|---|
| Mean (SD) age of onset | 36.4 (14.3) | 27 (5) | 52.3 (14.4) |
| Carotid body tumours | 82% | 0% | 15% |
| Jugulare tumours | 18% | 67% | 75% |
| Vagale tumours | 27% | 33% | 10% |
| Pheochromocytoma | 9% | 0% | 0% |
| Single tumours | 27% | 100% | 100% |
| Multiple or bilateral tumours | 36% | 0% | 0% |
| Family history | 73% | 33% | 5% |
| Sporadic | 27% | 67% | 95% |