PAX8 and medullary thyroid gland carcinoma: For example, the reported rate of PAX8 positivity ranges from 0 to 100% in cervical squamous cell carcinoma [20, 30], anaplastic thyroid cancer [35, 48], and non-invasive and invasive urothelial cancer [33, 46], from 0 to 96% in Merkel cell carcinoma [22, 38], from 0 to 83% in cervical adenocarcinoma [43, 46], from 0 to 75% in medullary thyroid cancer [22, 29], from 31 to 100% in papillary thyroid carcinoma [20, 54], from 42 to 95% in renal oncocytoma [46, 55], and from 38 to 100% in endometrioid adenocarcinoma of the ovary [12, 18].