{"entity":{"id":"nasopharynx-staging","kind":"term","name":"Nasopharyngeal cancer staging (AJCC chapter 9)","aka":["nasopharyngeal cancer staging","nasopharyngeal carcinoma staging"],"tldr":"Nasopharyngeal cancer is staged by how far the tumour reaches beyond the back of the nose and by which neck lymph nodes it has reached, from stage 0 to stage IV.","summary":"AJCC chapter 9 covers the nasopharynx; the AJCC 2026 table lists a Version 9 protocol for 2025. In the NCI's summary (8th edition groupings), stage 0 is abnormal cells in the lining; stage I is cancer in the nasopharynx only; stage II includes spread to lymph nodes on one side of the neck or behind the throat; stage III includes nodes on both sides of the neck; stage IV covers more extensive spread. Check which version a report uses.","asOf":"2026-11-04","links":[{"label":"National Cancer Institute, Nasopharyngeal cancer treatment (PDQ), patient version: stages","url":"https://www.cancer.gov/types/head-and-neck/patient/adult/nasopharyngeal-treatment-pdq"},{"label":"American College of Surgeons, AJCC Current Staging System 2026 (which chapters are 8th edition and which Version 9)","url":"https://www.facs.org/media/c5ik5tkr/ajcc-current-staging-system-2026.pdf"}],"tags":[],"related":["ajcc-version-9","tnm-staging"],"cancers":["nasopharyngeal"],"sections":[],"technologies":[],"targets":[],"drugs":[],"companies":[],"institutions":[],"pathways":[],"terms":[],"trials":[],"people":[],"bottlenecks":[],"keyPapers":[],"journals":[],"dependsOn":[],"notes":[],"category":"Clinical"},"route":"/terms/nasopharynx-staging/","neighbours":{"term":[{"id":"ajcc-version-9","kind":"term","name":"AJCC Version 9 staging","route":"/terms/ajcc-version-9/"},{"id":"staging-systems","kind":"term","name":"Disease-specific staging and risk systems (FIGO, Ann Arbor, IPI, R-ISS, ELN, IMDC)","route":"/terms/staging-systems/"},{"id":"tnm-staging","kind":"term","name":"TNM staging","route":"/terms/tnm-staging/"}],"cancer":[{"id":"nasopharyngeal","kind":"cancer","name":"Nasopharyngeal carcinoma","route":"/cancers/nasopharyngeal/"}]}}