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Purpose. To describe a case of choroidal melanocytoma mimicking a melanoma. Methods. Retrospective case report. Patient. A 48-year-old Moroccan woman presented with progressive, painless decreased vision in her left eye for 2 months. Results. Her visual acuity was light perception in the left eye and 20/20 in the right one. Fundus examination and fluorescein angiography of the left eye showed a total retinal detachment with a large superior brownish mass. The clinical examination, B-scan ultrasonography, and magnetic resonance imaging all suggested a malignant melanoma. Consequently, the eye was enucleated. The histopathology later revealed a benign melanocytoma of the choroid. Discussion. Melanocytoma is a rare benign pigmented tumor. It is classically described as a tumor of the optic nerve head, but there are some exceptional case reports of uveal tract locations (iris, ciliary body, and choroid). In such cases, it can be difficult to clinically differentiate a melanocytoma from a malignant melanoma.

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Birdshot chorioretinopathy is a rare idiopathic pathology. It is characterized by diffuse white spots in the retina and especially in the middle periphery. All patients are carriers of antigen HLA 29. Its treatment is based in the administration of corticosteroids and suppressant medication. We report the case of a young patient who had birdshot chorioretinopathy.

Orbital meningioma is a rare benign tumor, it develops from the dura mater and can invade the opposite bone and invade the orbital contents through the superior orbital fissure or optic canal, or more frequently after bone invasion. It frequently occurs in the spheno-orbital region, rarely in the frontal location, as in our case. This is a 58-year-old woman with no pathological antecedents. She consulted with our ophthalmology service with progressively installing low visual acuity with binocular diplopia. Examination of the right eye reveals exophthalmos axial, painless, non-reducible and non-pulsatile, as well as limitation of ocular motility in lateral gaze. Fundus examination showed grade 1 papilledema. Orbitocerebral scanner was favorable for frontal meningioma with grade 1 exophthalmos. Pariente was referred to neurosurgery for possible surgical excision.