|
| pT | pN | pM |
|
| pTX: Pprimary tumour cannot be assessed | pNX: Rregional lymph nodes cannot be assessed | pM1: Distant metastasis with histopathological confirmation |
| pTO: Nno evidence of primary tumour | pNO: Nno regional lymph node involvement | pM1a: histopathological confirmation of tumour at any distant site (bone marrow, liver, or others) |
| pT1: iintraocular tumour(s) without any local invasion, focal choroidal invasion, or pre- or intra-laminar invasion of the optic nerve head | pN1: regional lymph node involvement | pM1b: histopathological confirmation of tumour in the CSF fluid or CNS parenchyma |
| pT2: intraocular tumour(s) with minimum local invasion | | |
| pT2a: intraocular tumour(s) with local invasion-focal choroidal invasion, pre- or intra-laminar invasion of the optic nerve head | | |
| pT2b: intraocular tumour(s) with invasion of stroma iris and/or trabecular meshwork and/or Schlemm’s canal | | |
| pT3: intraocular tumour(s) with significant local invasion | | |
| pT3a: iintraocular tumour(s) with massive choroidal invasion in largest diameter, or multiple foci of focal choroidal invasion totaling >3 mm, or any full thickness choroidal invasion | | |
| pT3b: intraocular tumour(s) with post-laminar invasion of the optic nerve but not up to the end of its surgical margin | | |
| pT3c: intraocular tumour(s) with any partial thickness involvement of sclera within the inner two-thirds | | |
| pT3d: intraocular tumour(s) with full -thickness into the outer -third of the sclera and/or invasion into or around emissary channels | | |
| pT4: evidence of extraocular tumour: positive surgical margin of the optic nerve, full -thickness of the sclera, extra-ocular muscle, orbital bone, conjunctive, or eyelids | | |
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