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Renal Infarct

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This patient had a renal transplant and fresh out

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of the or we were asked to evaluate to make

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sure that everything was looking good. And so this trans was

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placed in the right lower quadrant. You can see it over here on grayscale Imaging

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looks reasonably good. We don't see any big masses. We

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don't see on this image at least any big collections. We can measure the transmission

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we've done here and one of the important things

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to do is after you get those initial gray scale images, you gotta get

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color images and you really want to make sure there's flow throughout the

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transplanted, kidney.

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But what are we seeing over here?

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Good amount of flow everywhere. There is a portion right

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over here it almost look wet shaped if you want to sort of draw it

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out that doesn't have flow within it.

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And so that is unusual. You can

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certainly look at it again on different color image over

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here to see if anything changes certainly no flow again

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in that area.

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We're measuring some of the intraprenchymal vessels

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over here coming back to that region again no

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flow. And so we try different techniques

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that are more sensitive to subtle areas of flow in here.

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You can see all the blue area has flow this area here, which

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is dark has no flow despite all

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the techniques that we use and so that's sort of consistent across whatever

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techniques that we try to see

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if they're slow in this region. And so when you start to see that God worry

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about it or you know in fart that's important

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to remember that renaline Park can occur really at any time

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after the patient has their transplant place and it may

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be second mental as sort of seen in this instance.

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Or could be quite Global as well. Not the whole kidney in

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parks. There are a number of ideologies often. It

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could be due to vascular thrombosis particularly. If

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there's a very small accessory artery that becomes thrombosed.

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emboli infections

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You know if during the surgery they ligate it's a small renal

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arteries on purpose or inadvertently. I would say that

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maybe that could also cause a small infarct patient may present with

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some pain at the site of the infarctic due to

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irritation of the adjacent fascia. And this is

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something you're really going to pick up when you do those color images

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when you see a consistent to reach and just does not

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fill with color flow. And so that would be compatible with

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an infarct.

Report

Faculty

Mahan Mathur, MD

Associate Professor, Division of Body Imaging; Vice Chair of Education, Dept of Radiology and Biomedical Imaging

Yale School of Medicine

Tags

Vascular

Ultrasound

Kidneys

Iatrogenic

Genitourinary (GU)

Body