EOD Primary Tumor
This input is used for staging
Notes
**Note 1:** Uveal melanomas arise most commonly in the choroid, less frequently in the ciliary body, and least often in the iris. Melanomas of the iris tend to be small, and those arising from or extending to the ciliary body typically are large. **Note 2:** Primary ciliary body and choroidal melanomas are classified according to four tumor size categories. The tumor size categories are based on the largest basal and thickness. * Basal diameter is collected in data item *Measured Basal Diameter* [NAACCR Date Item #3887] * Thickness is collected in the data item *Measured Thickness* [NAACCR Data Item #3888] **Note 3:** Discrete tumor deposit(s) in the orbit that are not contiguous to the eye are recorded in lymph nodes (See EOD Regional Nodes).Default
999NAACCR Item
NAACCR #772| Code | Description | SS2018 T |
|---|---|---|
| 000 | In situ: intraepithelial, noninvasive | IS |
| 100 | Any tumor size category - UNKNOWN if ciliary body involvement OR extraocular extension Localized, NOS | L |
| 200 | Any tumor size category - WITHOUT ciliary body involvement AND extraocular extension | L |
| 300 | Any tumor size category - WITH ciliary body involvement | L |
| 400 | Any tumor size category - WITH extraocular extension less than or equal to 5 mm in largest diameter - NONE or UNKNOWN if ciliary body involvement | RE |
| 500 | Any tumor size category - WITH ciliary body involvement - AND extraocular extension less than or equal to 5 mm in largest diameter | RE |
| 600 | Extraocular extension GREATER than 5 mm | RE |
| 700 | Extraocular extension, NOS UNKNOWN measurement WITH or WITHOUT ciliary body involvement | RE |
| 800 | No evidence of primary tumor | U |
| 999 | Unknown; extension not stated Primary tumor cannot be assessed Not documented in medical record Death Certificate Only | U |