A study analyzing 95 melanoma patients treated with ICIs found that genes affected by VARs associated with hypophysitis include SMAD3, PRDM1, and IL1RN, while genes affected by CNVs related to the occurrence of hypophysitis are TERT, SMAD3, JAK2, PRDM1, FAN1, CD274, and UNG [26]. The gene discussed is FAN1; the disease is melanoma.