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 stated

NAACCR 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)
\# TX is not defined in AJCC 7th edition. \## T0 is not defined in AJCC 7th edition.