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A cancer staging client library
{
"id" : "tonguebase_t_15526",
"algorithm" : "tnm",
"version" : "1.7",
"name" : "Path T Tongue Base",
"title" : "Pathologic T",
"notes" : "**Note 1:** The intrinsic muscles of tongue are four paired muscles within the tongue which control its shape. The extrinsic muscles originate from structures outside the tongue and control its positioning.\n\n**Note 2:** Tumor size must be known to assign a value of T1, T2 or T3. You may use a physician’s statement of the T category if this is the only information in the medical record. \n* If the tumor appears to be in the T1, T2 or T3 categories, but no size or category is specified, assign TX\n\n**Note 3:** Assign the appropriate T category (T1-T3) based on the tumor size for the following descriptions \n\n Invasive tumor on one side confined to posterior one-third of tongue\n Lamina propria\n Submucosa\n Anterior two-thirds of tongue for base of tongue\n Base of tongue for lingual tonsil\n Base of tongue tumor crosses midline\n Floor of mouth\n Glossoepiglottic fold\n Glossopharyngeal fold\n Lateral pharyngeal wall\n Lingual tonsil for base of tongue\n Lower gingiva\n Midline tumor\n Musculature, intrinsic or NOS \n Pharyngoepiglottic fold\n Soft palate, inferior surface or NOS including uvula\n Sublingual gland\n Tonsillar pillars and fossae\n Tumor of lingual tonsil on both sides\n Tonsils\n Vallecula\n\n Confined to base of tongue\n Localized, NOS",
"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" : "2018-04-11T19:53:06.141Z",
"definition" : [ {
"key" : "path_t",
"name" : "Pathologic T",
"type" : "INPUT"
}, {
"key" : "path_t_display",
"name" : "Pathologic T Display",
"type" : "DESCRIPTION"
}, {
"key" : "description",
"name" : "Description",
"type" : "DESCRIPTION"
}, {
"key" : "notes",
"name" : "Registrar Notes",
"type" : "DESCRIPTION"
} ],
"rows" : [ [ "pX", "pTX", "Primary tumor cannot be assessed", "Pathologic classification criteria met, evaluation done: \n Physician unable to assess T\n Surgical resection of primary tumor, extension not stated \n Tumor size (TS) unknown for T categories where TS needed to determine T\nPhysician assigns pTX, no other information available to determine T" ], [ "p0", "pT0", "No evidence of primary tumor", "" ], [ "pIS", "pTis", "Carcinoma in situ", "Intraepithelial, noninvasive\n\nStated as Tis" ], [ "p1", "pT1", "Tumor 2 cm or less in greatest dimension", "Stated as T1" ], [ "p2", "pT2", "Tumor more than 2 cm but not more than 4 cm in greatest dimension", "Stated as T2" ], [ "p3", "pT3", "Tumor more than 4 cm in greatest dimension OR \nextension to lingual surface of epiglottis", "Epiglottis, lingual surface plus soft palate\n\nStated as T3" ], [ "p4", "pT4", "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]" ], [ "p4A", "pT4a", "Tumor invades any of the following:\n Larynx\n Deep/extrinsic muscle of tongue, which are: \n Genioglossus\n Hyoglossus\n Palatoglossus \n Styloglossus\n Medial pterygoid\n Hard palate\n Mandible", "Hypopharynx\n\nStated as T4a" ], [ "p4B", "pT4b", "Tumor invades any of the following:\n Lateral pterygoid muscle\n Pterygoid plates\n Lateral nasopharynx\n Skull base\n Encases carotid artery", "Skin\n\nFurther contiguous extension\n \nStated as T4b" ], [ "88", "88", "Not applicable", "Primary site/histology not TNM defined\nDeath certificate only (DCO) case" ], [ "", "BLANK", "See Registrar Notes", "Pathologic classification criteria not met \nPathologic classification criteria met, evaluation done: \n Results not documented in patient record \n No surgical resection of known primary tumor (not T0) \n Resection insufficient for site-specific pathologic assessment\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)" ] ]
}