0:00

This was an example of a two year old that ended up having an intraocular

0:05

mass and then also had multiple lesions involving the brain. I think I,

0:10

I think you, did you think that this was a neurofibromatosis?

0:13

Is that what you thought? Was that you or somebody else?

0:17

Somebody else.

0:18

Somebody else. Okay. Did you get the diagnosis here? Yes. Of retinoblastoma.

0:23

Okay. Very good. Yeah. So in a two-year-old, when you see something like this,

0:27

see the Corona, and you see all this, these masses that are intraocular,

0:31

then the most likely diagnosis in a patient with leukocoria is gonna be, um,

0:36

retinalblastoma. And the interesting thing about this case, unfortunately,

0:40

is that the retinoblastoma extended posteriorly to the globe and grew back along

0:45

the optic nerve and all the way back here into the, um, cell.

0:50

So the terminology we sort of used to use was a trilateral

0:55

retinoblastoma. That's what we used to refer to it.

0:59

But I think in actuality what it is,

1:01

it's just basically intracranial metastases of retinalblastoma.

1:05

The other things here, you can see a little bit of abnormal enhancement here.

1:10

Um, you can see the abnormal enhancement, uh,

1:13

probably in the internal auditory canal.

1:15

See this area here and here can zoom that up a little bit.

1:20

So here and here, and what was kind of unfortunate, um, in this case,

1:26

but if you like anatomy, it was, it was kind of interesting,

1:29

is that if you mag this up,

1:33

here is the bows or artery. Here is the posterior cerebral artery.

1:36

Here's the superior cerebellar artery. You can see this mass right here.

1:40

What nerve do you think that's involving? That's, uh,

1:44

going between the P C A and the S C A,

1:48

Uh, that mass.

1:49

Beautiful. Exactly right.

1:50

So this was a metastases actually involving the third nerve. Mm-hmm.