Canadian Medical Guide > Diseases > Neoplasms > Neoplasms by Site > Eye Neoplasms > Uveal Neoplasms > Iris Neoplasms Terms and Definitions
Iris Neoplasms
Medical Definition: | Tumors of the iris characterized by increased pigmentation of melanocytes. Iris nevi are composed of proliferated melanocytes and are associated with neurofibromatosis and malignant melanoma of the choroid and ciliary body. Malignant melanoma of the iris often originates from preexisting nevi. |
Guide Notes: | /blood supply /chem /second /secret /ultrastruct permitted; coord IM with histol type of neopl (IM) |
Previously Indexed: | Eye Neoplasms (1968-1989),Iris (1968-1989),Melanoma (1968-1989) |
Iris Neoplasms Medical Definitions and Terms
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