0:01

<v ->I have also another classic case

0:06

talking about the epiphyseal tumor.

0:11

We can see this tumor here.

0:17

It's epiphyseal tumor.

0:19

Let's take a look at with two, okay.

0:23

T2 fat sat

0:26

and T1.

0:29

So this is a atypical tumor.

0:32

It's a classic tumor of the epiphysis

0:35

but is a atypical presentation.

0:40

We have a 34-year-old male with this tumor.

0:44

It has a little erosion of the cortical bone and cartilage

0:50

and has calcification,

0:53

calcification with no edema.

0:56

Okay, let's take a look at the post-contrast.

1:04

We have some enhancement inside the lesion

1:07

but not,

1:09

no edema.

1:10

And the calcification's still there.

1:13

The x-ray showing the calcification

1:18

around the tumor,

1:20

and this turned out to be a chondroblastoma.

1:26

And it's not usually chondroblastoma

1:30

we diagnose until, in the immature skeletal.

1:35

And what happens with the chondroblastoma,

1:37

if you don't diagnose that until the, and don't treat,

1:42

it will calcify and will lose its edema.

1:47

The case you present, the chondroblastoma

1:49

characterized by a lot of bone edema around the lesion.

1:53

And as we can see in this lesion,

1:55

there is no edema because this was a chronic old lesion

2:01

and probably would calcify all the lesion,

2:08

but unfortunately a little erosion happened,

2:11

and then the symptoms started.

2:14

So this is a,

2:18

the case of the chondroblastoma.

2:24

Don?

2:24

<v ->Yeah, I think it's a very challenging case,

2:27

and I'm not sure I would've arrived at the correct diagnosis

2:32

in this particular case

2:33

because some of the findings I look for were not there.

2:37

So I like your explanation

2:40

for the fact that it's been there a while,

2:43

and because of that,

2:44

some of those acute findings has gone away.

2:47

But a difficult case, I believe.