Review Article
Updated and New Perspectives on Diagnosis, Prognosis, and Therapy of Malignant Pheochromocytoma/Paraganglioma
Table 2
Correlations between gene mutations and clinical phenotype.
| Syndrome | Gene | PCCs (%) | Sympathetic PGL | Parasympathetic PGL | Bilateral/multifocal neoplasia | Malignancy (%) |
| MEN 2A | RET | ~50 | Very rare | Extremely rare | + | <3 | MEN 2B | RET | ~50 | Very rare | Extremely rare | + | <3 | VHL | VHL | 10–20 | + | Rare | + | 5 | NF1 | NF1 | 5 | − | − | − | 11 | PGL1 | SDHD | + | + | + | + | ~5 | PGL2 | SDHAF2 | − | − | + | + | Not known | PGL3 | SDHC | − | Rare | + | − | Not known | PGL4 | SDHB | Rare | + | Rare | + | ~40 | PGL5 | SDHA | − | + | − | Not known | Not known | TMEM127 mutation carriers | TMEM127 | 100 | − | − | + | ~5 | MAX mutation carriers | MAX | 100 | + | Extremely rare | + | ~10 |
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PCCs: pheochromocytomas; PGL: paragangliomas; +: present; −: absent.
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