choroidal malignant melanoma

choroidal malignant melanoma

[kôroi′dəl]
Etymology: Gk, chorion + eidos + L, malignus, ill-disposed; Gk, melas, black, oma, tumor
a tumor of the choroid coat of the eye that grows into the vitreous humor, causing detachment and degeneration of the overlying retina. Typically mound-shaped or mushroom-shaped, the neoplasm may break through the sclera and appear under the conjunctiva.
References in periodicals archive ?
There have been sporadic occurrences of MM at different sites in albinos in literature such as metastatic malignant melanoma of the nasal cavity, choroidal malignant melanoma and primary malignant melanoma in lungs.
After seeing a number of consultants and undergoing a series of scans, a rare cancerous tumour of the eye - choroidal malignant melanoma - was confirmed.
He confirmed the presence of a choroidal malignant melanoma that, if left any longer, would have required an operation to remove Marion's eye to prevent the tumour from spreading further.