0:01

So for this case, rather than showing you polyps and,

0:05

and various cancers, I wanted

0:06

to show you a false positive In this case.

0:10

You can see there's a polypoid lesion here located

0:12

between stri folds, kind of close to the, uh,

0:16

in the descending colon, uh, near one

0:18

of the fes in the descending colon.

0:19

But I wanted to show you what a stool ball looked like.

0:22

Um, on the lung windows,

0:25

you can see there's mixed attenuation within there.

0:28

Uh, in fact, there's some fat attenuation within there.

0:31

There's some mixed attenuation here, some areas

0:33

of hyperdense, some areas of hypodense, uh,

0:36

clearly not soft tissue in attenuation.

0:39

And let's see what it looks like on the prone images.

0:45

So it's not in the same location on the prone images.

0:48

So it, chances are it probably changed in position

0:51

and it might be, it's probably right here

0:54

along the dependent side of the, um, the

0:58

descending colon there.

0:59

So not fixed in location relative to the colonic wall,

1:03

and, uh, pretty characteristic for a, a fecal stool ball.

1:08

One other finding that I wanted

1:09

to show you here was this finding here.

1:11

Occasionally these can look like, uh,

1:13

impressions upon the wall of the colon,

1:15

but in this particular case, um, this ends up being,

1:20

uh, finding these frequently seen next to the spleen.

1:23

This is a lenal. And if there's ever,

1:26

ever any dilemma about whether you're dealing

1:28

with a lenal on these cases, you can do any multiple kinds

1:32

of studies that can prove that it's a lenal.

1:34

Oftentimes it's characteristic on, uh, any kind

1:37

of a contrast enhanced study, especially like an MRI.

1:40

Or you can even do a nuclear medicine, kind of a tag,

1:43

red blood cell scan or a, uh, liver spleen scan to, to prove

1:47

that you're looking at a, a lenal rather than, uh,

1:50

something else submucosal.

1:54

So two, uh, benign findings.