Mutations of the gene NDUFA13 (also known as GRIM 19) have been identified in oncocytic thyroid tumors.In one study, somatic missense mutations in NDUFA13 were found in 10–20% of oncocytic follicular carcinoma and the oncocytic variant of papillary carcinoma. Here, NDUFA13 is linked to thyroid gland papillary carcinoma.