Pheochromocytoma/paraganglioma  EGLN1,bEPAS1,bFH, KIF1B,bMAX, MEN1, NF1, RET, SDHA, SDHAF2,bSDHB, SDHC, SDHD, TMEM127, VHL. The gene discussed is COL4A4; the disease is pheochromocytoma-paraganglioma.