Pathologic T
This input is used for staging
Notes
**Note 1:** True invasion of the choroid is defined as one or more solid nests of tumor cells that fills or replaces the choroid and has pushing borders. This is distinguished from artifactual invasion, or groups of tumor cells in the open spaces beween intraocular structures, extraocular tissues, and/or subarachnoid space. **Note 2:** Focal choroidal invasion is a solid nest of tumor measuring less than 3 millimeter (mm) in maximum diameter. Massive choroidal invasion is a solid tumor nest 3 mm or more in maximum diameter.NAACCR Item
NAACCR #880| Pathologic T | Pathologic T Display | Description | Registrar Notes |
|---|---|---|---|
| pX | pTX | Primary tumor cannot be assessed | No enucleation performed or unknown if enucleation performed 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 | |
| p1 | pT1 | Tumor confined to eye with no optic nerve or choroidal invasion | Tumor cells in the vitreous body WITHOUT optic nerve or choroidal invasion Tumor(s) confined to and WITHOUT optic nerve or choroidal invasion: Eye, NOS Retina Subretinal space Stated as T1 |
| p2 | pT2 | Tumor with minimal optic nerve and/or choroidal invasion | Note: T2 has subcategories of T2a and T2b. Assign T2 only when there is no information available to assign one of the subcategories Tumor with minimal optic nerve and/or choroidal invasion, NOS Stated as T2 |
| p2A | pT2a | Tumor superficially invades optic nerve head but does not extend past lamina cribosa OR exhibits focal choroidal invasion | Tumor invades optic nerve up to, but not through, level of lamina cribrosa WITHOUT invasion of choroid Tumor invades choroid focally WITHOUT invasion of optic nerve Stated as T2a |
| p2B | pT2b | Tumor superficially invades optic nerve head but does not extend past lamina cribosa AND exhibits focal choroidal invasion | Tumor invades optic nerve up to, but not through, level of lamina cribosa WITH focal invasion of the choroid Stated as T2b |
| p3 | pT3 | Tumor with significant optic nerve and/or choiroidal invasion | Note: T3 has subcategories of T3a and T3b. Assign T3 only when there is no information available to assign one of the subcategories Tumor with significant optic nerve and/or choroidal invasion, NOS Stated as T3 [NOS] |
| p3A | pT3a | Tumor invades optic nerve past lamina cribosa but not to surgical resection line OR Tumor exhibits massive choroidal invasion |
Tumor invades optic nerve through the level of lamina cribosa but not to line of resection WITHOUT massive invasion of choroid Tumor massively invades choroid WITHOUT invasion of optic nerve through level of lamina cribrosa Tumor with significant optic nerve and/or choroidal invasion Stated as T3a |
| p3B | pT3b | Tumor invades optic nerve past lamina cribrosa but not to surgical resection line and exhibits massive choroidal invasion | Tumor invades optic nerve through level of lamina cribrosa but not to line of resection WITH massive invasion of choroid Stated as T3b |
| p4 | pT4 | Tumor invades optic nerve to resection line OR Exhibits extraocular extension elsewhere |
Note: T4 has subcategories of T4a and T4b. Assign T4 only when there is no information available to assign one of the subcategories Extraocular extension WITHOUT invasion of optic nerve to resection line including: Invasion of orbit through sclera Extension to: Anterior or posteriorly into orbit Apex of orbit Brain Brain beyond chiams Subarachnoidal space of optic nerve Stated as T4 [NOS] |
| p4A | pT4a | Tumor invades optic nerve to resection line NO extraocular extension identified |
Invasion of optic nerve to resection line WITHOUT extraocular extension Stated as T4a |
| p4B | pT4b | Tumor invades optic nerve to resection line Extraocular extension identified |
Invasion of optic nerve to resection line WITH extraocular extension including: Invasion of orbit through sclera Extension to: Anterior or posteriorly into orbit Apex of orbit Brain Brain beyond chiams Subarachnoidal space of optic nerve Staged as T4b |
| 88 | 88 | Not applicable | Primary site/histology not TNM defined 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) |