In addition, immunohistochemical (IHC) staining of WT1 in 38 parathyroid tissues (28 adenomas, 4 CDC73WT carcinomas, and 6 CDC73Mut carcinomas) confirmed the presence of CDC73Mut–specific WT1 in parathyroid cancer tissues (Fig. 6b). The gene discussed is WT1; the disease is malignant tumor of parathyroid gland.