Tumor size category 1 without ciliary body involvement and extraocular extension

Tumor size category 1 with ciliary body involvement

Tumor size category 1 without ciliary body involvement but with extraocular extension ≤5 mm in largest diameter

Tumor size category 1 with ciliary body involvement and extraocular extension ≤5 mm in largest diameter

Tumor size category 2 without ciliary body involvement and extraocular extension

Tumor size category 2 with ciliary body involvement

Tumor size category 2 without ciliary body involvement but with extraocular extension ≤5 mm in largest diameter

Tumor size category 2 with ciliary body involvement and extraocular extension ≤5 mm in largest diameter

Tumor size category 3 without ciliary body involvement and extraocular extension

Tumor size category 3 with ciliary body involvement

Tumor size category 3 without ciliary body involvement but with extraocular extension ≤5 mm in largest diameter

Tumor size category 3 with ciliary body involvement and extraocular extension ≤5 mm in largest diameter

Tumor size category 4 without ciliary body involvement and extraocular extension

Tumor size category 4 with ciliary body involvement

Tumor size category 4 without ciliary body involvement but with extraocular extension ≤5 mm in largest diameter

Tumor size category 4 with ciliary body involvement and extraocular extension ≤5 mm in largest diameter

Any tumor size category with extraocular extension >5 mm in largest diameter

No regional lymph node metastasis

Regional lymph node metastasis or discrete tumor deposits in the orbit

Metastasis in one or more regional lymph node(s)

No regional lymph nodes are positive, but there are discrete tumor deposits in the orbit that are not contiguous to the eye. (choroidal and ciliary body)

No distant metastasis

Distant metastasis

Largest diameter of the largest metastasis ≤3 cm

Largest diameter of the largest metastasis 3.1-8.0 cm

Largest diameter of the largest metastasis ≥8.1 cm