What is considered a small choroidal melanoma?

How is choroidal melanoma measured?

Ultrasonography is currently one of the most reliable techniques for measurement of choroidal melanomas (except in cases of anteriorly located tumors).

How fast does choroidal melanoma grow?

Choroidal melanomas tend to be very slow-growing, but because they often do not cause symptoms or visual changes when they are small, many are not recognized until they grow to larger sizes.

What percentage of choroidal nevus becomes melanoma?

It has been estimated that 6% of the white population harbors a choroidal nevus13 and that 1 in approximately 8000 of these nevi transform into melanoma. Further thought into age-adjusted lifetime risk revealed that by age 80 years, the risk for transformation is 0.78% and the risk would thereafter approach 1%.

Should I be worried about choroidal nevus?

Should I be worried if I have a choroidal nevus? Choroidal nevi are common and occur in about 5-10% of the population. Even though most nevi do not affect vision or cause any problems, they should still be watched regularly. Just like a skin mole can become cancerous, an eye nevus could do the same.

When should I be concerned about a choroidal nevus?

Only an eye doctor using specialized instruments can diagnose and monitor a choroidal nevus. If a choroidal nevus worsens and begins to leak fluid or if abnormal blood vessels develop, it is possible to then have a retinal detachment or degeneration in the area leading to some visual loss symptoms or flashing lights.

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Can a choroidal melanoma be benign?

The choroidal nevus is a benign melanocytic tumor of the ocular fundus that carries a small risk for transformation into small choroidal melanoma. According to Singh et al,3 it is estimated that the annual rate for malignant transformation of choroidal nevus into melanoma is 1 in 8845.

Is choroidal melanoma primary or secondary?

Choroidal melanoma is the most common primary malignant intraocular tumor and the second most common type of primary malignant melanoma in the body.