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{
"id" : "clin_t_larynx_subglottic_11069",
"algorithm" : "tnm",
"version" : "2.0",
"name" : "Clin T Larynx Subglottic",
"title" : "Clinical T",
"notes" : "**Note 1:** Impaired vocal cord mobility, also described as vocal cord paresis, may suggest invasion of intrinsic laryngeal muscle. Fixation of the vocal cord may be described as immobility of the arytenoids noted on endoscopy, vocal cord paralysis, or deviation of larynx to fixed side.\n\n**Note 2:** Assign T1 for localized tumor only if no information is available to identify further extension.",
"footnotes" : "\\* T4 [NOS] is not defined by UICC in the 7th edition. Approval has been provided by UICC to use \"Tumor invades bone, nerve or extrinsic deep muscles\" as T4 [NOS].\n\\# T4 [NOS] is not defined in AJCC 7th edition.",
"last_modified" : "2018-05-14T21:29:01.562Z",
"definition" : [ {
"key" : "clin_t",
"name" : "Clinical T",
"type" : "INPUT"
}, {
"key" : "clin_t_display",
"name" : "Clinical T Display",
"type" : "DESCRIPTION"
}, {
"key" : "description",
"name" : "Description",
"type" : "DESCRIPTION"
}, {
"key" : "notes",
"name" : "Registrar Notes",
"type" : "DESCRIPTION"
} ],
"rows" : [ [ "cX", "cTX", "Primary tumor cannot be assessed", "Clinical classification criteria met, evaluation done: \n Physician unable to assess T \n Extension cannot be determined\nPhysician assigns cTX, no other information available to determine T" ], [ "c0", "cT0", "No evidence of primary tumor", "" ], [ "pIS", "pTis", "Carcinoma in situ", "Intraepithelial, noninvasive\n\nStated as Tis" ], [ "c1", "cT1", "Tumor limited to subglottis", "Invasive tumor with normal vocal cord mobility confined to subglottis\n\nLocalized, NOS\n\nStated as T1" ], [ "c2", "cT2", "Tumor extends to vocal cord(s) \nWITH normal or impaired mobility", "Tumor involves adjacent regions(s) of larynx:\n Supraglottis\n Glottis\nWITH normal or impaired mobility\n\nStated as T2" ], [ "c3", "cT3", "Tumor limited to larynx \nWITH vocal cord fixation", "Stated as T3" ], [ "c4", "cT4", "Not defined by UICC*#", "Note: T4 has subcategories of T4a and T4b. Assign T4 only when there is no information available to assign one of the subcategories\n\nTumor invades bone, nerve or extrinsic deep muscles\n\nStated as T4[NOS]" ], [ "c4A", "cT4a", "Tumor invades cricoid or thyroid cartilage and/or invades tissues beyond the larynx, e.g.,\n Trachea\n Soft tissues of neck including deep/extrinsic muscle of tongue \n Genioglossus\n Hyoglossus\n Palatoglossus\n Styloglossus\n Strap muscles\n Thyroid\n Esophagus", "Base of tongue\nHypopharynx, NOS\nPostcricoid area\nPre-epiglottic tissues\nPyriform sinus (pyriform fossa)\nVallecula\n\nExtension to/through:\n Cervical esophagus\n Deep extrinsic muscles of tongue\n Strap muscles:\n Omohyoid\n Sternohyoid\n Sternothyroid\n Thyrohyoid\n Oropharynx\n Skin\n Soft tissues of neck\n Thyroid gland\n Trachea\n\nStated as T4a" ], [ "c4B", "cT4b", "Tumor invades: \n Prevertebral space\n Encases carotid artery\n Mediastinal structures", "Stated as T4b" ], [ "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\nClinical evaluation of primary tumor not done or unknown if done\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)" ] ]
}
