Stage IIIC includes: T4d-e, N0, M0. T4d: Ciliary body and choroid: Tumor size category 4 with ciliary body involvement and extraocular extension less than or equal to 5 mm in diameter. T4e: Ciliary body and choroid: Any tumor size category with extraocular extension more than 5 mm in diameter. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 7th ed.) [from
NCI]