Benign |
N | 23b
| 16 | 93 | 21 | 20 | – | 41 | 44 | 14 |
PI (%) | 1 | 0.75 | 0.21 | 0.9 | <1 | – | 0.8 | <1 | 2.2 |
Malignant |
N | 10 | 15 | 36 | 4 | 3c
| 43 | 5 | 11 | 7 |
PI (%) | 5 | 13.9 | 3.0 | 4.3 | <1 | 7.8 | 1.4 | – | 14.1 |
Cut-offa
| >3 | ≥3 | >2.5 | – | – | >5 | >2 | >5 | – |
Year | 1998 | 2000 | 2000 | 2001 | 2003 | 2004 | 2008 | 2010 | 2012 |
Reference | [17] | [18] | [19] | [20] | [15] | [21] | [22] | [16] | [23] |
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PI proliferation index
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aCut-off of PI (%) between benign and malignant pheochromocytoma
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bIncluding extra-adrenal tumors
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cPatients without metastasis at diagnosis
