SSS2K

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SEER Summary Stage 2000 Code Definition

0 ---- In situ 1 ---- Localized only 2 ---- Regional by direct extension only 3 ---- Regional lymph nodes involved only 4 ---- Regional by BOTH direct extension AND lymph node involvement 5 ---- Regional, NOS (Not Otherwise Specified) 7 ---- Distant site(s)/node(s) involved 9 ---- Unknown if extension or metastasis (unstaged, unknown, or unspecified) Death certificate only case
Regional by direct extension only (standard code = 2) Primary tumor extends into duodenum. Lymph nodes were negative on resection. No distant metastasis was noted on imaging studies or surgical observation. Gallbladder, bile duct margins and mesenteric fat were negative for malignancy.

Regional by direct extension only (standard code = 2)

Primary tumor extends into duodenum. Lymph nodes were negative on resection. No distant metastasis was noted on imaging studies or surgical observation. Gallbladder, bile duct margins and mesenteric fat were negative for malignancy.