Optic nerve melanocytoma
WebIntroduction. Usually unilateral, posterior melanocytoma presents clinically as an intense black or dark brown mass that may be confined to the optic disk and deeper portions of the optic nerve, but it frequently extends into the nerve fiber layer of the retina and the choroid. 1,2 Although suspected to be a congenital lesion, optic disk melanocytoma is generally … WebMelanocytoma of the optic nerve head is considered as a benign lesion typically dark or dark brown pigmented lesion on the ophthalmological exam, usually located over or adjacent …
Optic nerve melanocytoma
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WebMelanocytoma is a peculiar variant of nevus that classically occurs in the optic nerve head. It may be confined to the optic disc or it may have contiguous involvement of the choroid … WebPERIPAPILLARY pigmented lesions that involve the optic nerve and adjacent retina may represent choroidal melanoma, choroidal nevi, melanocytoma, congenital hypertrophy of the retinal pigment epithelium, adenomatous …
WebTo propose a theory based on clinical observation, namely, whether axonal distress induced by optic nerve tumors could be a triggering factor for optic disc drusen (ODD) formation. Case Reports. A 28-year-old woman with ODD and optic disc melanocytoma, a 53-year-old woman with ODD and optic nerve meningioma, ... WebMelanocytoma is a benign pigmented lesion composed of melanocytes. It classically affects the optic nerve head and it’s a variant of melanocytic naevus. It is a hamartoma consist of closely packed round or oval shaped cells in uniform shape, located at the nerve axon. For this reason there is lack of autofluorescence of these lesions.
WebJan 1, 2024 · Melanocytoma of optic nerve (MON) is a rare primarily benign lesion, but due to its malignant potential—estimated around 1–2% of cases (Shields et al. 2006), possible complications and the... WebOct 21, 2024 · Meningeal melanocytomas are rare benign primary melanocytic tumors of the CNS that are derived from leptomeningeal melanocytes. They can occur anywhere along the neuraxis but are most commonly found in the spinal canal near the foramen magnum, as well as the posterior cranial fossa, Meckel cave, or adjacent to cranial nerve nuclei 3,4. …
WebJun 15, 2024 · Magnocellular Nevus. The diagnosis in this issue is large melanocytoma, also known as magnocellular nevus, of the optic disc. A melanocytoma of the optic disc is defined as a unilateral benign ocular tumor composed of melanocytes involving the optic disc and the surrounding retina and choroid. 1-21 The average age at diagnosis is 50 and …
WebApr 11, 2024 · Multimodal imaging in optic nerve melanocytoma: Optical coherence tomography angiography and other findings. ... Analysis of optic nerve vascular area showed decreased values in the radial peripapillary capillary plexus (3 of 5) and the outer retinal plexus (4 of 5) in the eyes with ODM. ... manta to quito flightsWebComparison with nevus and melanoma SD OCT showed a high reflective choroidal layer with normal or irregular outer retinal layers respectively; OCT-A showed hypo reflective area at the center with hyper reflective boundary and iso reflective area at center with hyper reflective boundary respectively. croatia bachata festival 2022WebSep 26, 2024 · Melanocytoma of optic nerve (MON) is a rare primarily benign lesion, but due to its malignant potential—estimated around 1–2% of cases (Shields et al. 2006), possible … croatia brazil online streamWebOptic disc melanocytoma is a unilateral benign lesion of the optic nerve head, rarely causing visual disturbances. Vascular changes causing central retinal vein occlusion, compressive or mechanical effects of the mass over the optic nerve head can cause decrease in visual acuity. Here, authors report a case of optic disc melanocytoma associated ... croatia brazil full match 2014WebVisual complications may arise from optic nerve melanocytomas even though the tumors are benign Critical thinking in differentiating optic nerve melanocytomas from other … croatia ante pavelićWebNational Center for Biotechnology Information manta united soccerWebOptic disc melanocytoma is a benign lesion of the optic nerve head that poses little threat to vision and carries low malignancy potential. 1-4 Although the color fundus photo showed … manta vacation