Source:http://linkedlifedata.com/resource/umls/id/C0347096
NCI: Abnormal cells are found in the lining of the nasopharynx (the upper part of the throat behind the nose). These abnormal cells may become cancer and spread into nearby normal tissue.,NCI: Stage 0 includes: Tis, N0,M0. Tis: Carcinoma in situ. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 6th and 7th eds.)