NAACCR Item #3831: Extranodal Extension Head and Neck Clinical
| Item # | Length | Source of Standard | Year Implemented | Version Implemented | Year Retired | Version Retired |
|---|---|---|---|---|---|---|
| 3831 | 1 | NAACCR | 2018 | 18 |
NAACCR XML:
Tumor.extranodalExtensionHeadNeckClin
Description
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.
Rationale
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).
Codes
| 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 |
Code Notes
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.