SDHB and adrenal gland pheochromocytoma: CVD chemotherapy (cyclophosphamide 750 mg/m2, vincristine 1.4 mg/m2, and dacarbazine 600 mg/m2 on day 1 and dacarbazine 600 mg/m2 on day 2, at 21 day intervals) is recommended for rapidly progressive (<6 months) metastatic PCC/PGL and especially effective in SDHB-related disease.