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 21,279 document(s) hit in 31,850,051 MEDLINE articles (0.00 seconds)

We describe the clinical, angiographic, and echographic aspects of benign choroidal nevi and their differential diagnosis represented mostly by congenital hypertrophy of the pigment epithelium, melanocytoma, and mostly suspicious nevi. Suspicious nevi are defined by the presence of visual symptoms, the presence of orange pigment on the surface, the presence of subretinal fluid sometimes more visible on OCT, the presence of pin-points on angiograms, a thickness of more than 2mm, or a diameter of more than 7 mm. The proximity of the optic disk has also been shown to be a risk factor in several studies. A review of the literature showed that these factors that make the nevus suspicious are associated with a risk of malignant transformation and metastasis, which is correlated to the number of risk factors present at diagnosis. This is why it is important to recommend close follow-up of these lesions with a check-up every 3 months (and radiotherapeutic treatment in case of growth) or early treatment if there are several risk factors and if the lesion is away from the posterior pole.
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PMID:[Choroidal nevi]. 2011 86

Two cases of polypoidal choroidal vasculopathy (PCV) complicating benign choroidal nevus and their tomographic features at spectral-domain optical coherence tomography (SD-OCT) are reported. Two eyes with choroidal nevus and associated subretinal fluid underwent complete ophthalmological examination, SD-OCT, fundus fluorescein angiography, and indocyanine green angiography (ICGA). SD-OCT and ICGA confirmed the diagnosis of PCV in both cases. Ophthalmologists should be aware of this rare combination between choroidal nevus and PCV. If a choroidal nevus presents with subretinal fluid, this does not always herald malignant transformation, and PCV should be ruled out so that the correct treatment can be planned.
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PMID:Spectral-Domain Optical Coherence Tomography of Polypoidal Choroidal Vasculopathy Associated With Benign Choroidal Nevus. 2659 53

Iris nevus is common: 6% of patients with suspected iris melanoma have lesions other than melanoma, and 36% of them are nevi. Iris nevus turns into melanoma in approximately 8% of cases at a mean of 15 years. This case report provides the first description of an iris tumor examined with iris optical coherence tomography angiography (OCTA) compared to iris fluorescein angiography (IFA). A 60-year-old man with a diagnosis of iris nevus in the left eye was referred to our department for IFA and iris OCTA. The iris vasculature in IFA was visible only in the early phases, but not clearly. OCTA, however, gave visualization of the vascular network and very precisely defined the vessels of the whole lesion, except for the pupillary portion, which was masked by superficial pigment accumulations. IFA and iris OCTA can add information about the vascular architecture compared to slit-lamp biomicroscopy, ultrasound biomicroscopy, and anterior-segment OCT. However, IFA is time-consuming and invasive and can - very occasionally - cause serious adverse reactions. In contrast, OCTA defines the texture of the iris vasculature better. In conclusion, OCTA is a new method, easy to execute, needing no dye injection, and provides useful information on the vascular network of iris lesions. It could therefore be helpful in the diagnosis and follow-up of these lesions.
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PMID:Optical Coherence Tomography Angiography of Iris Nevus: A Case Report. 2779 Jan 34

Purpose To report a case of juxtapapillary polypoidal choroidal neovascularization (PCNV) associated with choroidal nevus investigated by means of optical coherence tomography angiography (OCT-A). Methods Case report. Results A 72-year-old woman presented with visual loss and metamorphopsia in her left eye for 5 days secondary to PCNV that developed on the border of a juxtapapillary choroidal nevus. Fluorescein angiography, indocyanine green angiography, and spectral-domain OCT confirmed the diagnosis. En face OCT-A disclosed a large tangled hyperreflective PCNV spreading from the optic disc at different levels of the choriocapillaris; the polyp lumina appeared hyporeflective. The patient was treated with 3 intravitreal injections of anti-vascular endothelial growth factor with partial functional recovery. Conclusions Our case showed the application of OCT-A in the diagnosis of a case of active PCNV complicating a benign intraocular tumor.
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PMID:Optical Coherence Tomography Angiography of Polypoidal Neovascularization Associated with Choroidal Nevus. 2800 12

We present a case of choroidal nevus, complicated by a choroidal neovascular membrane (CNV) that was detected by OCT angiography. Choroidal nevi are relatively common intraocular tumors. The presence of subretinal and intraretinal fluids can indicate that a CNV has occurred as a complication, warranting prompt management. However, subretinal and intraretinal fluids are also documented in nevi without CNV. OCT angiography may be of great help in determining whether those fluids are associated or not with a CNV, therefore guiding therapy.
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PMID:Choroidal Nevus-Associated Neovascular Membrane Demonstrated by OCT Angiography. 2841 8

We describe a case of a giant conjunctival nevus presented in a 12-year-old girl with suspicious clinicomorphological appearance. The lesion was noticed by the parents at the age of 3 years as a "fleshy spot" on the bulbar conjunctiva. The lesion remained unchanged until approx. 6 months before recent admission. On slit-lamp examination, a large conjunctival lesion with variegate pigmentation and indistinct margins was detected on the superonasal part of the bulbar conjunctiva of the left eye. Intralesional cysts and vessels were detected with AS-OCT examination. Wide excision and cryotherapy to the scleral bed were performed and amniotic membrane graft was used to restore the ocular surface. Histopathological examination revealed compound type conjunctival nevus and disclosed any sign of malignancy. Although giant conjunctival nevus is a rare entity, precise diagnosis and adequate management are very important as it can be confused with malignant melanoma.
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PMID:Giant Conjunctival Nevus in a 12-Year-Old Child. 2891 92

Optical coherence tomography angiography (OCT-A) is a recently established noninvasive technology for evaluation of the retinal and choroidal vasculature. The literature regarding the findings in choroidal nevi is scarce. We report the OCT-A findings associated with two different variants. Subject one had decreased vascular flow signal in the choroidal, choriocapillaris, deep retinal, and superficial retinal layers. Subject two had decreased vascular flow signal in the choroidal, choriocapillaris, and deep retinal layers with a normal vascular flow signal in the superficial retinal layer. To our knowledge, these patterns of decreased vascular flow signals have not been previously reported using OCT-A. This may be due to blockage from the choroidal nevus, true diminished blood flow (ischemia), or other factors.
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PMID:Optical Coherence Tomography Angiography of Two Choroidal Nevi Variants. 2913 9

A 58-year-old man presented with visual distortion in the right eye for 2 years. His best-corrected visual acuity was 20/25 in each eye. Fundus examination revealed a macular pigmented lesion with central retinal pigment epithelial (RPE) atrophy and drusen in the right eye. Enhanced depth imaging optical coherence tomography (EDI-OCT) of the right eye showed a slightly elevated choroidal lesion with choroidal vascular compression, optical shadowing, and trace cystoid macular edema. In addition, there was notable, prominent focal outer retinal atrophy simulating solar retinopathy, but the patient denied sun-gazing, laser pointer-gazing, and alkyl nitrate (popper) medications. The final diagnosis was choroidal nevus with focal extensive outer retinal atrophy, giving a pseudosolar retinopathy appearance. Imaging with EDI-OCT provides indispensable information concerning retinal and RPE alterations overlying choroidal nevus and other choroidal lesions. [Ophthalmic Surg Lasers Imaging Retina. 2019;50:586-588.].
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PMID:Choroidal Nevus With Outer Retinal Atrophy Simulating Solar Retinopathy. 3158 57