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Presumed Solitary Circumscribed Retinal Astrocytic Proliferation in the Fovea With OCT Angiography: A Misnomer.

07:00 EST 1st March 2018 | BioPortfolio

Summary of "Presumed Solitary Circumscribed Retinal Astrocytic Proliferation in the Fovea With OCT Angiography: A Misnomer."

The retinal lesion known as the presumed solitary circumscribed retinal astrocytic proliferation (pSCRAP) is a benign retinal tumor. Although many of the clinical characteristics of the lesion have been described, much about the pathogenesis of this uncommon tumor is not yet known. Here, the authors report a pSCRAP lesion in the fovea with secondary vision loss occurring in middle age. Structural optical coherence tomography (OCT) scans indicate that the lesion arises from the deep retina or retinal pigment epithelium (RPE), whereas OCT angiography characteristics of the lesion show a lack of intrinsic or paralesional vascular flow, indicating that this lesion is fibrous and likely derived from the RPE or deep retina and not the retinal astrocytes. [Ophthalmic Surg Lasers Imaging Retina. 2018;49:212-214.].

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This article was published in the following journal.

Name: Ophthalmic surgery, lasers & imaging retina
ISSN: 2325-8179
Pages: 212-214

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Medical and Biotech [MESH] Definitions

A membrane on the vitreal surface of the retina resulting from the proliferation of one or more of three retinal elements: (1) fibrous astrocytes; (2) fibrocytes; and (3) retinal pigment epithelial cells. Localized epiretinal membranes may occur at the posterior pole of the eye without clinical signs or may cause marked loss of vision as a result of covering, distorting, or detaching the fovea centralis. Epiretinal membranes may cause vascular leakage and secondary retinal edema. In younger individuals some membranes appear to be developmental in origin and occur in otherwise normal eyes. The majority occur in association with retinal holes, ocular concussions, retinal inflammation, or after ocular surgery. (Newell, Ophthalmology: Principles and Concepts, 7th ed, p291)

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