Slide 9-19

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File number: 29177


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    Appears in
    Unit 09 Pathology of the Retina
    Condition/keywords
    retinal arterial macroaneurysm, retinal exudates
    Description
    Retinal arterial macroaneurysm. A ring of retinal exudate partially sur­rounds the macroaneurysm (upper left), which is more clearly delineated by fluorescein (upper right). The retinal arteriole is greatly dilated, and the stain for elastic tissue shows a localized area of disruption and loss of the internal elastic membrane (arrow). The surrounding retina is thickened by edema and some hemorrhage. The ectatic area of the vessel wall is greatly thickened by the accumulation of a laminated fibrinous ma­terial. (Courtesy of Alan Friedman, M.D.)

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