atheroma

(redirected from atherosis)
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Related to atherosis: atherosclerosis, athetosis

atheroma

[‚ath·ə′rōm·ə]
(medicine)
A lipid deposit in the inner wall of an artery; characteristic of atherosclerosis.
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The elements include acute atherosis (Figure 13), fibrinoid necrosis with or without foam cells (Figure 14), mural hypertrophy (Figure 15), chronic perivasculitis (Figure 15, A), absence of spiral artery remodeling (Figure 16), arterial thrombosis (Figure 17), and persistence of intramural endovascular trophoblast in the third trimester (Figure 18).
The characteristic lesions are vascular lesion which atherosis of decidual spiral arteries, thrombosis, infarction and retro placental hematoma.
2) acute atherosis was noted as a specific finding which was seen in 18% of preterm placente.