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15 Cards in this Set
- Front
- Back
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Amniotic fluid embolism - occurs when the placenta is delivered and ruptures open the maternal sinuses, allowing for amniotic fluid to enter maternal circulation and cause DIC
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Arterial embolism - most arise from mural thrombi in the heart that travel to lower extremities
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Bone marrow embolism - result from fractures that release bone marrow into circulation (common with overly enthusiastic CPR)
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"Nutmeg Liver" aka chronic passive congestion of the liver due to heart failure - causes hepatic sinuses to fill with blood (red dots)
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fat embolism - similar bone marrow embolism
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Folliculitis - tiny pus-filled abscess surround by hyperemia due to inflammatory dilation of arterioles
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intussception - invagination of the bowel. Causes congestive infarct (dark area) due to compression of venous outflow
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pulmonary edema - notice how there is NO inflammatory cells. Pink stained area is albumin
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Recanalization - occurs when a scar forms in a blood vessel and a series of small holes are formed to retain blood flow. Lumen will never be as wide as it originally was.
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Petichiae - pinpoint hemorrhages causes by leaky capillary walls (which can be due to increased hydrostatic pressure, thrombocytopenia, or poor basement membrane formation)
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pulmonary edema
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pulmonary thromboembolsim - notice the lines in the clot ("lines of Zahn") that indicate that this is a pre-mortem clot
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A - red infarct = caused by venous occlusion, often in loose tissue with double circulation (ex: lung). B - white infarct = caused by occlusion of arterial supply, often in solid organs
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renal infarct - notice the characteristic wedge shape, pale necrotic area surrounded by a rim of hyperemia. This will eventually form a scar
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Lines of Zahn in a thrombus - lines of organized fibrin ("F") with interwoven platelets ("P")
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