microaneurysm /mi·cro·an·eu·rysm/ (-an´ūr-izm) a microscopic aneurysm, a characteristic of thrombotic purpura.
microaneurysm
microaneurysm
mi·cro·an·eu·rysm (m  kr - n y -r zm)n. A focal dilation of the venous end of retinal capillaries occurring in diabetes mellitus, retinal vein obstruction, and absolute glaucoma. |
microaneurysm
[mi′krō·an′yəriz′əm]
Etymology: Gk, mikros + aneurysma, a widening
a microscopic aneurysm characteristic of thrombotic purpura.
microaneurysm
a minute aneurysm occurring on a vessel of small size, such as one in the retina of the eye or as occurs in thrombotic purpura.
microaneurysm
Tiny swelling in the wall of a blood vessel. It appears in the retinal capillaries as a small, round, red spot. It is commonly found in diabetic retinopathy, retinal vein occlusion or absolute glaucoma.
microaneurysm
A teensy-weensy aneurysmal dilation of small arteries, arterioles, or capillaries 'classically' seen in the retina of Pts with long-standing DM, often associated with edema and hemorrhage; MAs occur elsewhere in DM,
and in other conditions–eg, thrombotic thrombocytopenic purpura. See Cherry-red spot.
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