D31: Benign neoplasm of eye and adnexa

D31.3: Benign neoplasm: Choroid

When there is abnormal growth of tissue in an organ, then this is referred to as a tumor. The tissue in the body is made up of cells. A tumor disorder involves the cells multiplying more than normal. This results in abnormal or excess tissue forming. A tumor can be benign or malignant. You have a benign tumor. Benign tumors do not destroy the healthy tissue and do not spread throughout the body.

The tumor you have is in your choroid. The choroid is the middle layer in the eye sheath. It lies between the sclera and the retina. There are lots of blood vessels in this layer. The choroid supplies the retina below it with oxygen and nutrients.

The tumor may cause you to find it more difficult to see. It is also possible that you have no symptoms at all.