Histologic examination revealed papillary thyroid carcinoma infiltrating the peri-thyroid lax tissues, which was classified as T3N1bMx due to metastatic involvement of four right recurrent lymph nodes (NR1, NR3, NR4) and three right lateral cervical lymph nodes (N1, N2). The gene discussed is GRIN2B; the disease is thyroid gland papillary carcinoma.