Item #	Length	Source of Standard	Year Implemented	Version Implemented	Year Retired	Version Retired
3833	1	NAACCR	2018	18

Extranodal Extension Pathological is defined as "the extension of a nodal metastasis through the lymph node capsule into adjacent tissue" identified as part of the surgical resection. This data item defines pathological ENE for sites other than Head and Neck.

Extranodal Extension Pathological (non-Head and Neck) is a Registry Data Collection Variable for AJCC. This data item was previously collected for Penis, SSF# 17.

0	Regional lymph nodes involved, ENE not present/not identified from surgical resection
1	Regional lymph nodes involved, ENE present/identified from surgical resection
7	No lymph node involvement from surgical resection (pN0)
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 No surgical resection of regional lymph nodes Cannot be determined Pathological assessment of lymph nodes not done, or unknown if done Extranodal Extension Pathological not assessed or unknown if assessed

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.