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215 Possible Causes for Retinal Pigment Absent

  • Familial Adenomatous Polyposis

    […] teeth), ocular problems (i.e. congenital hypertrophy of retinal pigment epithelium [CHRPE]) or juvenile nasopharyngeal angiofibromas Gardner syndrome encompasses the subset[] […] wall following local surgery / trauma May develop bone lesions (i.e. osteomas ), skin lesions (i.e. epidermal inclusion cysts ), dental abnormalities (i.e. supranummary or absent[]

  • Glaucoma

    In another heterozygote, the optic nerve is absent and the canal contains pigmented cells and loose connective tissue. H&E x 200. K-N.[] Retinal phenotypes are also variable in Bmp4 /- eyes. K. Peripapillary retina from a heterozygous eye with a similar optic nerve phenotype to that in I.[]

  • Normal-Tension Glaucoma

    retinal pigment epithelium at the disc border, often in the region of worst cupping Focal notching of the optic cup, often associated with nerve fibre layer defects and/or[] […] hypotension 5 Morphological and structural optic nerve weakness, as evidenced by the following signs that occur more commonly in NTG: Peripapillary atrophy: a crescent of absent[]

  • Peripheral Vasoproliferative Retinopathy

    The ophthalmoscopic findings are variable; most patients show either a normal fundus appearance or only subtle retinal pigment epithelial granularity and mild vessel attenuation[] A markedly reduced or absent electroretinogram indicates generalized photoreceptor dysfunction, and in infants this test is the only method by which an absolute diagnosis[]

  • Retinitis Pigmentosa

    Retinal potential was absent in electroretinography. Biomicroscopy showed optic nerve atrophy, and narrow retinal vessels with a typical pattern of retinal pigmentation.[] Funduscopy reveals moderate attenuation of retinal vessels, and in adulthood the appearance of pigment deposits and macular atrophy.[] The earliest observed changes in the fundus are fine dust-like granularity of the retinal pigment epithelium (RPE), with normal associated vasculature and pigmentary mottling[]

  • Occlusion of the Ophthalmic Artery

    Mottled hyperfluorescence in the posterior pole due to window defects on fluorescein angiography indicated retinal pigment epithelial drop out in the region, and absent visual[] The fundus evaluation showed optic disc pallor with retinal ghost vessels and retinal pigment epithelium alterations and macular atrophy.[] The electroretinogram was not performed but fluorescein angiography done at follow up showed markedly delayed choroidal perfusion and absent retinal filling confirming the[]

  • Paraneoplastic Syndrome

    […] vasculature, retinal pigment epithelial changes and vitreous cells. 2,6 Retinal pigment dispersion is typically absent or sparse in distribution. 31 The electroretinography[] […] vessels ERG: Absent Melanoma Bipolar retinal neurons Bilateral diffuse uveal melanotic proliferation Visual loss: Rapid Pigment epithelial patches Uveal tumors Retinal detachment[] […] findings in CAR are illustrative of global retinal dysfunction, with severely reduced, if not extinguished, scotopic and photopic a- and b-waves. 7 On an immunologic basis[]

  • Central Retinal Vein Occlusion

    RESULTS: The retinal layers of interest (external limiting membrane; ellipsoid zone; and retinal pigment epithelium) were classified as absent, disrupted, or present.[] Main outcome measure was the change in outer retinal layers at the 12-month examination.[]

  • Gardner Syndrome

    Patients may also suffer from congenital hypertrophy of the retinal pigment epithelium,[ 7 ] although the finding was absent in our case.[] An ocular manifestation commonly associated with Gardner syndrome is congenital hypertrophy of the retinal pigmented epithelium (CHRPE), which are teardrop-shaped lesions[] CHRPE is a sensitive marker for Gardner syndrome, as it has been found to absent in colonic polyposis but is present in some variants of FAP.[]

  • Choroid Hemangioma

    (lipofuscin), drusen (absent, present), fibrous metaplasia of retinal pigment epithelium (absent, present), intraretinal edema, and RPE alterations.[] Outer retinal abnormalities included subretinal fluid (n 7, 70%), lipofuscin deposition (n 1, 10%), irregularity and thinning of retinal pigment epithelium and absence or[] […] irregularity of the ellipsoid layer (n 4, 40%), absent external limiting membrane (n 2, 20%), and disruption of the outer nuclear layer and outer plexiform layer (n 3, 30%[]

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