CHRPE or bear tracks have no increased associa- tion with FAP, as several. congenital grouped albinotic spots, multimodal imaging, optical coherence tomography, polar bear tracks, retinal pigment epithelium Search for Similar Articles You may search for similar articles that contain these same keywords or you may modify the keyword list to augment your search. Known to be associated with other systemic findings such as familial adenomatous polyposis and Gardner's syndrome (intestinal polyposis, hamartoma of the skeleton, and multiple soft tissue tumors). A benign congenital proliferation of the retinal pigment epithelium which may appear unilaterally as a dark-grey or black, round or oval lesion in the fundus (. congenital grouped albinot- ic spots, or polar bear tracks, however there.Differential diagnosis include: choroidal melanomas, choroidal nevi, melanocytomas of the choroids, hyperplasia of the RPE, post-hemorrhage hemosiderin deposits.Fluorescein angiography demonstrates blocked choroidal fluorescence by the hypertrophied RPE and no leakage of dye.Generally located in the peripheral but may occasionally in the peripapillary region.(Peichl, Behrmann, & Kroger, 2001), while other marine carnivores such as polar bears and sea otters have retained both S and L/M cones (Levenson et al., 2006). Multiple areas of grouped CHRPE simulating the animal foot-print are also called "bear tracks". The black bear retina contains both cone subtypes and L/M cones outnumber S cones by at least 3:1.No progression of the fundus lesions or of visual and electrophysiologic functions in the patient was noted. His visual acuity, visual field, color vision, dark adaptation, and electroretinographic and electro-oculographic findings were normal in both eyes. In contrast to solitary CHRPE, lacunae are generally absent. E, Fundus photograph of the left eye demonstrating polar bear tracks in the superonasal area. A 24-year-old man had multiple, grouped, sharply circumscribed, variable-sized albinotic spots resembling polar bear tracks in both fundi. Occasionally, lesions may be amelanotic and are termed polar bear tracks. ![]() Depigmented or hypopigmented punched-out lacunae or fenestration lesions may be evident within larger lesions. Lesions are characteristically localized within a sector of the fundus (usually unilateral) with smaller areas surrounding larger ones, giving rise to a bear track appearance ( Fig.The discovery of pigmentary lesions in a young infant with a poor red reflex warrants urgent ophthalmological and electrodiagnostic review to exclude serious diagnoses, including an early-onset severe retinal dystrophy. May be encircled by hyper- or hypo-pigmented halo. These lesions (bear tracks) typically increase in size as they approach the retinal periphery.Well-demarcated, round, solitary or multiple gray-brown or black lesions which have flat or scalloped margins.Benign pigmented fundus lesions that commonly discovered during routine eye examination.
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