Herein, we utilized IHC for cMYC in a tissue microarray (TMA) study performed on a spectrum of follicular cell-derived thyroid carcinomas, including papillary (n = 25), follicular (n = 25), oncocytic variant of follicular (n = 25), and undifferentiated (n = 22) carcinomas. The gene discussed is MYC; the disease is carcinoma.