Stage II Choroidal and Ciliary Body Melanoma AJCC v8

**Semantic type:** Neoplastic Process

**Definition:** Stage II includes: IIA (T1b-d, N0, M0); (T2a, N0, M0); IIB (T2b, N0, M0); (T3a, N0, M0). T1b: Tumor size category 1 with ciliary body involvement. T1c: Tumor size category 1 without ciliary body involvement but with extraocular extension less than or equal to 5 mm in largest diameter. T1d: Tumor size category 1 with ciliary body involvement and extraocular extension less than or equal to 5 mm in largest diameter. T2a: Tumor size category 2 without ciliary body involvement and extraocular extension. T2b: Tumor size category 2 with ciliary body involvement. T3a: Tumor size category 3 without ciliary body involvement and extraocular extension. N0: No regional lymph node metastasis. M0: No distant metastasis. (AJCC 8th ed.)

**Synonyms:** - Stage II Choroidal and Ciliary Body Melanoma - Stage II Posterior Uveal Melanoma AJCC v8