Human eye section showing structure with diseased melanotic tumor (large pink area) brightfield photomicrograph


The cells that become cancerous in melanoma are called melanocytes. Melanocytes are cells that make pigment or colouring. There are melanocytes in our skin, lips, and the lining of organs such as the eye. Melanoma starting in the eyeball is rare, but it is the most common type of eye cancer in adults. Your specialist may call it uveal or choroidal melanoma because it grows in the tissues in the middle layer of the eyeball, the choroid. This layer is sometimes called the uvea and includes the iris and ciliary body. The melanoma starts in the choroid or the ciliary body in almost 95 out of every 100 cases (95%) of eyeball melanoma. The other 5% begin in the iris.


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Keywords: brightfield, cancer, carcinoma, diseased, eye, eyeball, human, melanocytes, melanotic, nerve, optic, photomicrograph, retina, section, showing, structure, tumor