RPE Rip презентация

RPE Rip

Red-free Photograph

Red-free Photograph Red-free photograph: Shallow subretinal fluid Drusen Note the area just temporal to the centre of the macula that appears to be hypopigmented (arrow)

Early-phase Fluorescein Angiogram

Early-phase Fluorescein Angiogram Early (arterial) phase: The most important frame Note the oval area of mild hyperfluorescence occurring when the retinal arteries are just filling The choroid is also just beginning to fill Horizontally oriented vessels represent larger choroidal vessels seen through a rip of the RPE

Mid-phase Fluorescein Angiogram

Mid-phase Fluorescein Angiogram Mid-phase: Well-circumscribed hyperfluorescent area with curved outer border and almost straight line margin adjacent to an area of relative hypofluorescence Findings are typical of RPE rips and should act as clues to the diagnosis

Mid-phase Fluorescein Angiogram By only examining this image and the one that follows, this can be mistaken for classic CNV The very early image helps to make the correct diagnosis This can also be misdiagnosed as geographic atrophy, which has: A border that is geographic not linear A lesion with no overlying retinal detachment

Late-phase Fluorescein Angiogram

Late-phase Fluorescein Angiogram Late phase: Increased hyperfluorescence with mild leakage at margins Again, this can easily be confused with the pattern seen with classic CNV if the entire study is not examined, including the red-free image