Pathologic T
This input is used for staging
Notes
**Note 1:** Assign 88 for in situ cases (behavior code /2). EORTC does not include an in situ category for Mycosis Fungoides tumors. **Note 2:** For skin * Patch indicates any size skin lesion without significant elevation or induration * Plaque indicates any size skin lesion that is elevated or indurated * Tumor indicates at least one 1 centimeter (cm) diameter solid or nodular lesion with evidence of depth and/or vertical growth **Note 3:** Assign T1 when skin involvement is present but only a general location/site is mentioned (i.e., face, torso, arms, legs). **Note 4:** Assign T2 If a physician describes a skin lesion of less than 1 cm as a tumor. **Note 5:** Assign T3 if eythrodema is greater than 50%. * Ignore erythroderma if stated to involve less than 50% of the skin **Note 6:** Physicians use more than one method to estimate percentage of skin involvement by mycosis fungoides (MF). Code percent of skin involvement as stated by the physician. * If no percentage is stated and no word such as localized or generalized is used and no stage is given, code as percent not statedNAACCR Item
NAACCR #880| Pathologic T | Pathologic T Display | Description | Registrar Notes |
|---|---|---|---|
| pX | pTX | Primary tumor cannot be assessed# | Pathologic classification criteria met, evaluation done: Physician unable to assess T Surgical resection of primary tumor, extension not stated Physician assigns pTX, no other information available to determine T |
| p0 | pT0 | No evidence of primary tumor## | No evidence of any type of skin involvement, including plaques, papules, patches, or tumors |
| p1 | pT1 | Limited patches, papules, and/or plaques covering <10% of skin surface | Note: T1 has subcategories of T1a and T1b. Assign T1 only when there is no information available to assign one of the subcategories Skin involvement less than 10%, not stated whether plaques, papules or patches, no tumors Limited plaques/patches Plaques, papules, or erythematous patches: % body surface not stated, no tumors Skin involvement, NOS: Extent not stated, no tumors Localized, NOS Stated as T1 [NOS] |
| p1A | pT1a | Patch only | Patches only with less than 10% of skin surface involved Stated as T1a |
| p1B | pT1b | Plaque with or without patch | Plaques or papules, WITH or WITHOUT patches, with less than 10% of skin surface involved, no tumors Stated as T1b |
| p2 | pT2 | Patches, papules or plaques covering >= 10% of the skin surface | Note: T2 has subcategories of T2a and T2b. Assign T2 only when there is no information available to assign one of the subcategories Skin involvement 10% or more, not stated whether plaques, papules or patches, no tumors Skin lesion described as tumor less than 1 cm Generalized plaques/patches Stated as T2 [NOS] |
| p2A | pT2a | Patch only | Patches only with 10% or more of skin surface involved Stated as T2a |
| p2B | pT2b | Plaque with or without patch | Plaques or papules, WITH or WITHOUT patches, with 10% or more of skin surface involved, no tumors Stated as T2b |
| p3 | pT3 | One or more tumors (>= 1 cm diameter) | Cutaneous tumor, size not stated Generalized erythroderma (Greater than 50% less than 80% body surface involved with diffuse redness) Stated as T3 |
| p4 | pT4 | Confluence of erythema covering >=80% body surface area | Generalized erythroderma Equal to or greater than or equal to 80% body surface involved with diffuse redness Stated as T4 |
| 88 | 88 | Not applicable | In situ case but no pTis is defined by EORTC Death certificate only (DCO) case |
| <BLANK> | BLANK | See Registrar Notes | Pathologic classification criteria not met Pathologic classification criteria met, evaluation done: Results not documented in patient record No surgical resection of known primary tumor (not T0) Resection insufficient for site-specific pathologic assessment No surgical resection of primary tumor and there isn’t a positive biopsy of a structure in the highest T category and highest N category Evidence of metastatic disease (pM1), no other workup Only Pathologic Stage Group documented (no T, N, or M information available) |