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angioid streak

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angioid streak
n.
Any of the breaks in the basal layer of the choroid of the eye occurring in a variety of systemic disorders affecting elastic tissue.

angioid streak
Ophthalmology Any of number of minute interruptions of the elastic tissue of the retina, which appear as peripapillary, gray–in non-whites to red-brown–whites, linear striations radiating from the optic fundus along stress lines or toward the equator in an abnormal Bruch's membrane;12 occur in Pts with pseudoxanthoma elasticum; ASs also occur in fundi rendered brittle by calcium–tumor-related calcinosis or heavy metal–eg, lead; ASs also occur in acromegaly, abetalioproteinemia, DM, hemochromatosis, hemolytic anemia, hypercalcinosis, hyperphosphatasia, ITP, myopia, neurofibromatosis, Paget's disease of bone, senile elastosis, sickle cell anemia, Sturge-Weber syndrome, tuberous sclerosis


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There are several other conditions that occur in relatively young patients, such as Ocular Histoplasmosis and Angioid Streaks, in which breaks in Bruch's membrane occur and are complicated by subfoveal choroidal neovascularization.
 
 
 
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