NAACCR Item #3832: Extranodal Extension Head and Neck Pathological
|Item #||Length||Source of Standard||Year Implemented||Version Implemented||Year Retired||Version Retired|
NAACCR XML: Tumor.extranodalExtensionHeadNeckPath
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 pathological staging extension.
Extranodal Extension Head and Neck Pathological is a Registry Data Collection Variable in AJCC. It was previously collected as Head and Neck SSF# 9 (Common SSF).
|0.0||Lymph nodes positive for cancer but ENE not identified or negative|
|0.1-9.9||ENE 0.1 to 9.9 mm|
|X.1||ENE 10 mm or greater|
|X.2||ENE microscopic, size unknown|
Stated as ENE (mi)
|X.3||ENE major, size unknown|
Stated as ENE (ma)
|X.4||ENE present, microscopic or major unknown, size unknown|
|X.7||Surgically resected regional lymph nodes negative for cancer (pN0)|
|X.8||Not applicable: Information not collected for this case|
(If this information is required by your standard setter, use of code X.8 may result in an edit error)
|X.9||Not documented in medical record|
No surgical resection of regional lymph nodes
ENE not assessed pathologically, or unknown if assessed
Pathological 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.