SDHD and neoplasm: When we analyzed the relation between the presence of Th17 cells and SDHD expression we found a significant inverse correlation between the numbers of tumor‐infiltrating Th17 cells per mm2 and IRS of SDHD (Fig. 6F; r = −0.7073), whereas no correlation was found between numbers of CD4−IL‐17+ cells per mm2 and SDHD expression (Fig. S7A).