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 confined to mucosa of subglottis WITH normal vocal cord mobility Extension involving mucosa only of adjacent region(s) or of larynx: Supraglottis Glottis WITH normal vocal cord mobility Extension involving mucosa only of adjacent regions: Base of tongue Hypopharynx, NOS Postcricoid area Pre-epiglottic tissues Pyriform sinus Vallecula 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 tissues of any structure in T3 Involvement of any structures in T3 WITH impaired vocal cord mobility Tumor limited to larynx WITH vocal cord fixation Involvement of deep soft tissues or musculature of any structure in T3 WITH or WITHOUT vocal cord impairment or fixation of larynx or NOS Extension to/through: Cervical esophagus Cricoid cartilage Deep muscle of tongue Strap muscles: Omohyoid Sternohyoid Sternothyroid Thyrohyoid Oropharynx Skin Soft tissues of neck Thyroid cartilage Thyroid gland Trachea 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 |
Contiguous extension: Carotid artery (encased) Mediastinal structures 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) |