Stage IIIA intraocular melanoma of the ciliary body and choroid

{
  "id": "MLC-T-ONC-008183",
  "term": "Stage IIIA intraocular melanoma of the ciliary body and choroid",
  "field": "Oncology and biomedicine",
  "definition": "Stage III is divided into stages IIIA, IIIB, and IIIC. In stage IIIA, the tumor (1) is size category 2 (12.1 to 18 millimeters wide and not more than 3 millimeters thick; or 9.1 to 15 millimeters wide and 3.1 to 6 millimeters thick; or not more than 12 millimeters wide and 6.1 to 9 millimeters thick) and has spread through the sclera to the outside of the eyeball. The part of the tumor outside the eyeball is not more than 5 millimeters thick. The tumor may have spread to the ciliary body; or (2) is size category 3 (15.1 to 18 millimeters wide and 3.1 to 6 millimeters thick; or 12.1 to 18 millimeters wide and 6.1 to 9 millimeters thick; or not more than 18 millimeters wide and 9.1 to 12 millimeters thick; or not more than 15 millimeters wide and 12.1 to 15 millimeters thick) and has spread to the ciliary body; or (3) is size category 3 and has spread through the sclera to the outside of the eyeball. The part of the tumor outside the eyeball is not more than 5 millimeters thick. The tumor has not spread to the ciliary body; or (4) is size category 4 (more than 18 millimeters wide and may be any thickness; or 15.1 to 18 millimeters wide and more than 12 millimeters thick; or not more than 15 millimeters wide and more than 15 millimeters thick) and is in the choroid only.",
  "references": [
    "NCI Dictionary of Cancer Terms"
  ],
  "url": "https://mlchart.com/terminology/oncology/stage-iiia-intraocular-melanoma-of-the-ciliary-body-and-choroid/"
}