With respect to these markers, thyroid cancers are similar to other malignancies in terms of expression of CD44+CD24−, ALDH+, and CD133+ (breast cancers), CD133+ and ALDH+ (colon cancers), and CD44highESAlow-EMT and CD44highESAhigh-EMT in oral squamous cell carcinomas (see Ref. This evidence concerns the gene PROM1 and oral cavity squamous cell carcinoma.