0:00

So this was an example of a patient that had a mass here

0:05

involving the hard palate. So this was a mass involving the hard palate.

0:09

So remember the hard palate is a component of the oral cavity.

0:15

So this was a tumor that was involving the hard palate.

0:17

And what was actually doing was actually growing superiorly along this

0:22

canal. So if we look at the heart palate here, here's a tumor,

0:26

and this tumor is actually growing superiorly along the incisive canal.

0:31

So this leads us into the conversation about

0:37

tumors that are involving the oral cavity.

0:40

So there are different subsides of the oral cavity.

0:43

So the oral cav cavity sends anteriorly from the lip all the way back

0:48

to the posterior aspect of the heart palate,

0:51

and specifically at about the level of the anterior tonsor pillar.

0:55

So the oral cavity is divided up into six different subsides.

0:59

So here's a tumor involving the right buccal region.

1:02

So this is located between your cheek and your gum.

1:06

This is an example of a tumor that's involving the floor of the mouth.

1:10

This is the normal appearance of the heart palate.

1:13

This is the cancer that we're evaluating this case.

1:16

And I do want to point out this little canal right here.

1:19

That's the incisive canal. Uh, excuse me,

1:22

sorry about this was the alveolar ridge. Apologies for that. This is actually,

1:25

uh, the alveolar ridge. The alveolar ridge is where the two sockets stuck into.

1:29

This is the hard palate. So this is the tumor involving the hard palate, but I,

1:34

but that incisive canal that we're looking for is located right here.

1:38

In the case that we're seeing is that tumors involving in the hard palate.

1:41

And because there's a canal right here, it's growing into it.

1:45

The fourth location of the oral cavity is the oral tongue.

1:48

So you can have tumors that are involving in the oral tongue and later on,

1:52

we'll see an example of this there.

1:55

This area that's behind the last molar is called the retromolar trigone.

1:59

So you can have tumors that are involving the retromolar trigone.

2:02

So these are the six subsites of the oral cavity.

2:06

And these are all examples of tumors that are involving the oral cavity.

2:11

So this is a tumor that's involving the lip.

2:14

This is involving the buccal region.

2:16

This was a squamous cell carcinoma involving the floor of the mouth.

2:20

This was a squamous cell carcinoma involving the alveolar ridge.

2:24

This was a squamous cell carcinoma involving the heart palate that's extending

2:28

in the region of the incisive canal.

2:30

This was a tumor involving the oral tongue.

2:33

And this is an example of a tumor involving the retromolar trigone.

2:39

So these are the six subsites of the oral cavity right here.

2:43

And these are examples of tumors involving each one of those subsites.