So let's move on to splenic abnormalities.
It's actually very uncommon to find focal lesions within the spleen.
So it's rare to find a splenic abnormality.
The most common splenic lesion is a cyst
and it's usually an incidentaloma or an incidental finding on a CT.
So splenic cyst are well defined.
They're smoothly marginated low density lesions
that are found within the spleen as you can see right here.
There's no enhancement after contrast administration.
So what do you see on this image?
There's an abnormality adjacent to the spleen.
This is also a very common finding and usually found as an incidental finding.
So what is that structure right there?
It has the same density as the spleen and it's located right next to it.
So this is actually a splenule. This is an accessory spleen.
It's a very common incidental finding
and it's again, a well circumscribed mass
that has the same exact density as the spleen.
It's found in close proximity to the spleen
and often a patient may have multiple splenules that are seen.
And again, these are asymptomatic
and there's nothing that needs to be done about this.
They're just a normal finding that we see on a CT.
So we've reviewed multiple abnormalities
of the gall bladder and the biliary system.
It's important to recognize some of these abnormalities
because ultrasound is often performed to evaluate for these.
And hopefully this gives you a good background for the next talk.