The role of OCT angiography in a rare case of malignant trasformation of an optic disc melanocytoma.

The melanocytoma is a benign, highly pigmented tumor, localized on or adjacent to the optic disc. Its malignant trasformation represents a rare event. We describe a case of a 43-years old woman returned to our observation 29 years later with a malignant melanoma from an optic disc melanocytoma evaluated by Optical Coherence Tomography Angiography (OCTA). OCTA is a valid, non-invasive, dyeless and reliable method that could improve the diagnosis of this rare case of malignant trasformation of an optic disc melanocytoma.