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Case: Renal Infarcts

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Okay, so here we have another contrast

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enhanced CT scan of the abdomen and pelvis.

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And again, we're seeing some, a little bit

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of consolidation here in the left lower lobe,

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some tiny imperfections in this patient.

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Um, we also see a bit of periportal halos

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as we saw in other cases consistent with,

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uh, periportal edema in this patient.

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Now as we come down, we're going to

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see that the liver enhances pretty

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homogeneously besides that periportal edema.

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But on the other side where we always look at the

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spleen, you can see that the spleen is heterogeneous

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here with multiple peripheral, one would say wedge

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type low attenuation regions within the spleen.

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That is a classic appearance of splenic infarcts.

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Additionally, as we come to the

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retroperitoneal location, you can see multiple

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low attenuation regions within the kidneys

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bilaterally in that wedge-shaped appearance.

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Again, that is a beautiful

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appearance of renal infarcts.

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Unlike the pyelonephritis that

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was kind of gray in attenuation,

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chis is lack of blood flow

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causing ischemic wedge type infarcts, and as a result

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of it being infarcted tissue rather than normal tissue,

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these are actually very low in attenuation because

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there's absolutely no blood flow to these locations.

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Um, this is a classic appearance

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of bilateral renal infarcts.

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Again, we'll go on coronal, just to give you

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a better look at that wedge-shaped appearance.

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I feel like that looks like an apple pie to me.

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I could have it with

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some whipped cream.

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And on the other side we have

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multiple pie pieces as well.

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So this is a patient who has bilateral

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renal infarcts and splenic infarcts as well.

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So mostly this,

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this is going to be embolic in nature.

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Uh, we would look carefully at the heart in a

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patient like this or suggest an echocardiogram

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as a source for their showering of emboli.

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You also have to hope that they aren't

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embolizing to anything more vital

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in their head, such as their brain.

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So this is an emergent situation in this

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patient, but that's also a nice imaging

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example of embolic disease within the abdomen and pelvis.

Report

Faculty

Laura L Avery, MD

Assistant Professor of Emergency Radiology Harvard Medical School

Massachusetts General Hosptial

Tags

Kidneys

Genitourinary (GU)

Emergency

Body

Acquired/Developmental

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