MDK was reported to promote metastasis by its mitogenic, pro‐inflammatory and angiogenic functions in several tumor types including melanoma, head, and neck cancers.[14] We next validated the effect of MDK on the oncology and ferroptosis of PTCs using the B‐CPAP cells (a cell line with a BRAFV600E mutation[15]). Here, MDK is linked to malignant tumor of neck.