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{
"id" : "clin_n_ddm",
"algorithm" : "tnm",
"version" : "1.6",
"name" : "Clin N Esophagus GE Junction",
"title" : "Clinical N",
"notes" : "**Note 1:** Code only regional lymph nodes and lymph nodes, NOS in this field. Distant lymph nodes are coded in M (distant metastasis).\n\n**Note 2:** Assign N1 if regional lymph nodes are involved but there is no indication of the number of nodes involved.\n\n**Note 3:** Regional lymph nodes for any part of the esophagus fall in the range from periesophageal/cervical to the celiac region. Contralateral and bilateral cervical, supraclavicular, and mediastinal lymph nodes are included. However, some nodal chains in this large area are partially regional and partially distant because they include both nodes that are close to the esophagus toward the body's midline and nodes that run laterally away from the esophagus or perpendicular to it. Regional nodes are those that lie in the bed of the esophagus. \n\n*Examples*\n\n Regional supraclavicular nodes (level 1)\n Regional pulmonary ligament nodes (level 9)\n Regional hilar tracheobronchial nodes (level 10)\n Regional diaphragmatic nodes (level 15)\n\n* These nodes are closest to the esophagus; nodes in these chains that are further from the esophagus are distant\n\n* Medical record terminology is unlikely to be so specific in describing involved node locations, so try to correlate involved node information with staging statements that indicate whether the nodes were classified as regional or distant by the physicians; lacking such physician guidance, presume regional nodes. If the record just indicates involvement of supraclavicular nodes, for example, and there is no further information available, presume that the involved nodes were close to the esophagus and regional\n\n**Regional lymph nodes for EsophagusGEJunction**\n\n Left gastric (superior gastric), NOS\n Cardiac\n Cardioesophageal\n Gastric, left (17)\n Gastropancreatic, left\n Lesser curvature\n Lesser omental\n Pericardial (16)\n Pancreaticosplenic (pancreaticolienal)\n Pancreatoduodenal\n Perigastric, NOS\n Peripancreatic\n Right gastric (inferior gastric), NOS\n Gastrocolic\n Gastroduodenal\n Gastroepiploic (gastro-omental), right or NOS\n Gastrohepatic\n Greater curvature\n Greater omental\n Pyloric, NOS\n Infrapyloric (subpyloric)\n Suprapyloric\n Splenic (lienal), NOS\n Gastroepiploic (gastro-omental), left\n Splenic hilar\n Nodule(s) in perigastric fat\n\n Celiac \n Hepatic and hepatoduodenal\n\n Paraesophageal, NOS\n Periesophageal, NOS, including:\n Anterior mediastinal (6)\n Aortopulmonary (5)\n Diaphragmatic (15)\n Paraesophageal, lower (8l)\n Paraesophageal, middle (8m)\n Paratracheal, lower (4L, 4R)\n Paratracheal, upper (2L, 2R)\n Posterior mediastinal (3p)\n Pulmonary ligament (9)\n Subcarinal (tracheal carina) (7)\n Supraclavicular (1)\n Tracheobronchial (hilar) (10L, 10R)\n\n Regional lymph nodes, NOS\n Lymph nodes, NOS",
"last_modified" : "2018-02-02T14:54:20.839Z",
"definition" : [ {
"key" : "clin_n",
"name" : "Clinical N",
"type" : "INPUT"
}, {
"key" : "clin_n_display",
"name" : "Clinical N Display",
"type" : "DESCRIPTION"
}, {
"key" : "description",
"name" : "Description",
"type" : "DESCRIPTION"
}, {
"key" : "notes",
"name" : "Registrar Notes",
"type" : "DESCRIPTION"
} ],
"rows" : [ [ "cX", "cNX", "Regional lymph nodes cannot be assessed", "Clinical classification criteria met, evaluation done: \n Physician unable to assess N\n Regional lymph node involvement cannot be determined or findings inconclusive\nPhysician assigns cNX, no other information available to determine N" ], [ "c0", "cN0", "No regional lymph node metastasis", "" ], [ "c1", "cN1", "Metastasis in 1-2 regional lymph nodes", "Stated as N1" ], [ "c2", "cN2", "Metastasis in 3-6 regional lymph nodes", "Stated as N2" ], [ "c3", "cN3", "Metastasis in 7 or more regional lymph nodes", "Stated as N3" ], [ "88", "88", "Not applicable", "Primary site/histology not TNM defined\nDeath certificate only (DCO) case" ], [ "", "BLANK", "See Registrar Notes", "Clinical classification criteria not met\nClinical classification criteria met, evaluation done:\n No information about diagnostic workup\n Results not documented in record\nTumor first detected on surgical resection (no clinical workup)\nEvidence of metastatic disease [(cM1) or (pM1)], no other workup\nOnly Clinical Stage Group documented (no T, N, or M information available)" ] ]
}