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{
"id" : "merkel_cell_skin_t_48418",
"algorithm" : "tnm",
"version" : "1.6",
"name" : "Path T Merkel Cell Skin",
"title" : "Pathologic T",
"notes" : "**Note 1:** Code the tumor with the greatest extension when there are multiple simultaneous tumors.\n\n**Note 2:** Skin ulceration does not alter the T category.\n\n**Note 3:** In-transit metastasis is coded in N (regional lymph nodes).\n\n**Note 4:** 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 5:** For the following descriptions, assign the appropriate T category (T1, T2 or T3) based on the tumor size.\n\n Lesion(s) confirmed to dermis\n Localized, NOS\n Subcutaneous tissue (through entire dermis)",
"last_modified" : "2018-02-02T14:54:24.397Z",
"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", "Intraepidermal, 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 5 cm in greatest\ndimension", "Stated as T2" ], [ "p3", "pT3", "Tumor more than 5 cm in greatest dimension", "Stated as T3" ], [ "p4", "pT4", "Tumor invades deep extradermal structures, \ni.e., cartilage, skeletal muscle, fascia, or bone", "Fascia\n\nUnderlying cartilage, bone, skeletal muscle\n\nFurther contiguous extension\n\nStated as T4" ], [ "88", "88", "Not applicable", "Death 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)" ] ]
}
