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{
"id" : "path_n_dfe",
"algorithm" : "tnm",
"version" : "2.0",
"name" : "Path N NET Colon",
"title" : "Pathologic N",
"notes" : "**Note 1:** Histological examination of a regional lymphadenectomy specimen will ordinarily include 12 or more lymph nodes. If the lymph nodes are negative, but the number ordinarily examined is not met, classify as pN0. (1) \n\n**Note 2:** Code only regional nodes and nodes, NOS, in this field. Distant nodes are coded in M (distant metastasis).\n\n**Regional lymph nodes**\n \n**All colon sites** \n\n Colic [NOS] \n Epicolic (adjacent to bowel wall) \n Mesocolic [NOS] \n Mesenteric [NOS]\n Paracolic/pericolic\n\n**Cecum (C180)** \n\n Anterior (prececal)\n Cecal [NOS]\n Ileocolic\n Periappendiceal\n Posterior (retrocecal)\n Right colic \n\n**Ascending colon (C182)** \n\n Ileocolic\n Middle colic\n Right colic\n\n**Hepatic flexure (C183)** \n\n Middle colic \n Right colic\n\n**Transverse colon (C184)** \n\n Inferior mesenteric \n Left colic \n Middle colic \n Right colic\n\n**Splenic flexure (C185)** \n\n Inferior mesenteric \n Left colic \n Middle colic\n\n**Descending colon (C186)** \n\n Inferior mesenteric \n Left colic \n Sigmoid \n\n**Sigmoid colon (C187)** \n\n Inferior mesenteric \n Left colic \n Rectosigmoid \n Sigmoid \n Sigmoidal (sigmoid mesenteric) \n Superior hemorrhoidal \n Superior rectal",
"footnotes" : "(1) International Union Against Cancer (UICC) *TNM Classification of Malignant Tumors,* 7th ed., Sobin, LH, Gospodarowicz, M, Wittekind, CH, eds. New York: Wiley, 2009, pg., 104",
"last_modified" : "2018-05-14T21:29:02.710Z",
"definition" : [ {
"key" : "path_n",
"name" : "Pathologic N",
"type" : "INPUT"
}, {
"key" : "path_n_display",
"name" : "Pathologic N Display",
"type" : "DESCRIPTION"
}, {
"key" : "description",
"name" : "Description",
"type" : "DESCRIPTION"
}, {
"key" : "notes",
"name" : "Registrar Notes",
"type" : "DESCRIPTION"
} ],
"rows" : [ [ "pX", "pNX", "Regional lymph nodes cannot be assessed", "Pathologic classification criteria met, evaluation done:\n Physician unable to assess N\n Surgical resection primary tumor, no regional lymph nodes removed\n Involvement of regional lymph nodes not documented\nPhysician assigns pNX, no other information available to determine N" ], [ "p0", "pN0", "No regional lymph node metastasis", "" ], [ "p1", "pN1", "Regional lymph node metastasis", "Regional lymph nodes, NOS\nLymph nodes, NOS\n\nStated as N1" ], [ "c0", "cN0", "Clinically: No regional lymph node metastasis", "Use only for TNM defined pTis cases where there is a resection of the primary and the nodes are not evaluated pathologically" ], [ "88", "88", "Not applicable", "In situ case but no pTis is defined by TNM\nDeath certificate only (DCO) case" ], [ "", "BLANK", "See Registrar Notes", "Pathologic classification criteria not met \nNo surgical resection of primary tumor and there isn’t a positive biopsy of a structure in the highest T category and highest N category\nEvidence of metastatic disease (pM1), no other workup\nOnly Pathologic Stage Group documented (no T, N, or M information available)" ] ]
}
