Pathologic T
This input is used for staging
Notes
**Note 1:** Assign 88 for in situ cases (behavior code /2). TNM does not include an in situ category for mucosal melanoma tumors. **Note 2:** Mucosal melanomas are aggressive tumors, therefore, T1 and T2 are omitted, as are Stages I and II. **Note 3:** Assign T3 for localized tumor when no other information is available or for extension involving the mucosa only of adjacent sites. **Note 4:** Assign T4a or T4b for extension involving the deeper tissues of the primary or adjacent sites.NAACCR 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# | |
| p3 | pT3 | Tumor limited to the epithelium and/or submucosa (mucosal disease) | Tumor extension involving mucosa of: Adjacent subsite(s) of oropharynx Adjacent subsite(s) of supraglottis (including posterior surface of epiglottis) WITHOUT fixation of larynx Anterior surface of epiglottis with normal vocal cord mobility Base of tongue WITHOUT fixation of larynx Larynx, glottis or NOS WITHOUT fixation of larynx Pyriform sinus, medial wall or NOS WITHOUT fixation of larynx Vallecula WITHOUT fixation of larynx Buccal mucosa Mucosa of floor of mouth Mucosa of gum (gingival) Localized, NOS Stated 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 Tumor invades bone, nerve or extrinsic deep muscles Stated as T4[NOS] |
| p4A | pT4a | Tumor invades: Deep soft tissue Cartilage Bone Overlying skin |
Involvement of deep tissue or musculature Soft tissue, NOS Anterior 2/3 of tongue Esophagus Hard palate Hypopharynx, NOS Minor thyroid cartilage erosion (inner cortex) Nasopharynx, NOS Paraglottic space Parotid gland Pre-epiglottic tissues Postcricoid area Pterygoid muscle Pyriform sinus except medial wall Soft palate Soft tissues of neck Strap muscles: Omohyoid Sternohyoid Sternothyroid Thyrohyoid Thyroid Thyroid cartilage, NOS Trachea Extrinsic muscles of tongue: Genioglossus Geniohyoid Hyoglossus Mylohyoid Palatoglossus Styloglossus Stated as T4a |
| p4B | pT4b | Tumor invades any of the following: Brain Dura Skull base Lower cranial nerves (IX, X, XI, XII) Masticator space Carotid artery Prevertebral space Mediastinal structures |
Prevertebral fascia or muscle Prevertebral space Further contiguous extension Stated as T4b |
| 88 | 88 | Not applicable | In situ case but no pTis is defined by TNM 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) |