Table 1.
Patients and tumors characteristics.
| Patients (n = 49) | Value [Range] |
|---|---|
| Sex ratio (F/M) | 27/22 |
| Median age (y) | 49 [13–79] |
| Symptomatic (yes/no) | 23/26 |
| Secretion (yes/no/unknown) | 44/2/3 |
| Metanephrine predominant (n) | 16 |
| Normetanephrine predominant (n) | 29 |
| Similar normeta/metanephrine | 1 |
| Metastatic (no/yes) | 47/2 |
| Genetic status (n = 49) | |
| Cluster-1-related genes (SDHB, SDHD, VHL, FH) | 4 |
| Cluster-2-related genes (RET, NF1) | 9 |
| Sporadic | 32 |
| Indeterminate | 4 |
| Pheochromocytomas (n = 52) | Value [Range] |
| Unique (n) | 46 |
| Bilateral (n) | 3 |
| Median size (mm) | 45 [17–300] |
| Median Ki-67 | 2 [1–30] |
| Median PASS score | 4 [0–18] |
| MIBG (positive/negative) | 39/13 |
| FDG (positive/negative) | 48/4 |