Clinical 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 #940| Clinical T | Clinical T Display | Description | Registrar Notes |
|---|---|---|---|
| cX | cTX | Primary tumor cannot be assessed# | Clinical classification criteria met, evaluation done: Physician unable to assess T Extension cannot be determined Physician assigns cTX, no other information available to determine T |
| c0 | cT0 | No evidence of primary tumor## | No evidence of any type of skin involvement, including plaques, papules, patches, or tumors |
| c1 | cT1 | 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] |
| c1A | cT1a | Patch only | Patches only with less than 10% of skin surface involved Stated as T1a |
| c1B | cT1b | 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 |
| c2 | cT2 | 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] |
| c2A | cT2a | Patch only | Patches only with 10% or more of skin surface involved Stated as T2a |
| c2B | cT2b | 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 |
| c3 | cT3 | 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 |
| c4 | cT4 | 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 | Clinical classification criteria not met Clinical classification criteria met, evaluation done: No information about diagnostic workup Results not documented in record Clinical evaluation of primary tumor not done or unknown if done Tumor first detected on surgical resection (no clinical workup) Evidence of metastatic disease [(cM1) or (pM1)], no other workup Only Clinical Stage Group documented (no T, N, or M information available) |