Large Choroidal Melanocytoma Simulating Choroidal Melanoma: A Difficult Differential Diagnosis and an Inevitable Enucleation

Figure 3

MRI of the orbits: (a) tumor showing high signal intensity on T1-weighted images; (b) heterogeneous appearance and low signal intensity on T2-weighted images; (c) T2-weighted images on a coronal plane: heterogeneous appearance and low intensity with a collar-button extension (arrow); (d) tumor shows enhancement on T1-weighted images with fat suppression, after Gadolinium administration.

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