The genes related to VHL differential disorders include FH, FLCN, MET, BAP1, SDHA, SDHB, SDHC, SDHD, SDHAF2, TMEM127, MAX, RET, and NF1, which are collectively associated with an increased risk of pheochromocytoma, paraganglioma, and renal cell carcinoma (RCC) including ccRCC. The gene discussed is SDHAF2; the disease is nonpapillary renal cell carcinoma.