malignant neoplasm of retromolar area TNM staging regional lymph nodes (N) NX
malignant neoplasm of retromolar area tnm staging regional lymph nodes (n) nx
malignant neoplasm of retromolar area TNM staging regional lymph nodes (N) NX (diagnosis)
malignant neoplasm of retromolar area tnm staging regional lymph nodes (n) nx (diagnosis)