angioid streak


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angioid streak

Any of a number of minute interruptions of the elastic tissue of the retina, which appear as peripapillary, grey (in non-white patients) to red-brown (in white patients) linear striations radiating from the optic fundus along stress lines or toward the equator in an abnormal Bruch’s membrane. ½ occur in patients with pseudoxanthoma elasticum; ASs also occur in fundi rendered brittle by calcium (tumour-related calcinosis) or heavy metal (e.g., lead), as well as in acromegaly, abetalioproteinaemia, DM, haemochromatosis, haemolytic anaemia, hypercalcinosis, hyperphosphatasia, ITP, myopia, neurofibromatosis, Paget’s disease of bone, senile elastosis, sickle cell anaemia, Sturge-Weber syndrome and tuberous sclerosis.

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

angioid streak

A linear crack in Bruch's membrane radiating outward from the optic nerve. It is ssociated with pseudoxanthoma elasticum, sickle cell, and Paget's disease
See also: streak