DICER1 and thyroiditis: In brief, the 26 DICER1-mutated thyroid lesions include 3 TFND cases, 8 benign/low-risk lesions (7 FTA and 1 NIFTP), 10 well-differentiated thyroid carcinomas (10 FTC), and 5 high-grade thyroid carcinomas (3 DHGTC and 2 PDTC).