NAACCR Item #3831: Extranodal Extension Head and Neck Clinical
|Item #||Length||Source of Standard||Year Implemented||Version Implemented||Year Retired||Version Retired|
NAACCR XML: Tumor.extranodalExtensionHeadNeckClin
Extranodal extension (ENE) is defined as "the extension of a nodal metastasis through the lymph node capsule into adjacent tissue" and is a prognostic factor for most head and neck tumors. This data item pertains to clinical staging extension.
Extranodal Extension Head and Neck Clinical is a Registry Data Collection Variable in AJCC. It was previously collected as Head and Neck SSF# 8 (Common SSF).
|0||Regional lymph nodes involved, ENE not present/not identified during diagnostic workup|
|1||Regional lymph nodes involved, ENE present/identified during diagnostic workup, based on physical exam WITH or WITHOUT imaging|
|2||Regional lymph nodes involved, ENE present/identified during diagnostic workup, based on microscopic confirmation|
|4||Regional lymph nodes involved, ENE present/identified, unknown how identified|
|7||No lymph node involvement during diagnostic workup (cN0)|
|8||Not applicable: Information not collected for this case (If this information is required by your standard setter, use of code 8 may result in an edit error)|
|9||Not documented in medical record ENE not assessed during diagnostic workup, or unknown if assessed Clinical assessment of lymph nodes not done, or unknown if done|
Each Site-Specific Data Item (SSDI) applies only to selected primary sites, histologies, and years of diagnosis. Depending on applicability and standard-setter requirements, SSDIs may be left blank.