0:00

Let's end the discussion on ranula with this case.

0:04

This is a patient who has bilateral ranula.

0:07

Remember that ranula...

0:08

The term "ranula" refers to the Latin "rana,"

0:13

which is the frog.

0:15

And it has this lesion in the fore of the

0:18

mouth that looks sort of like a frog.

0:20

We'll go back to a diagram showing that. Here you

0:23

have the patient who has bilateral involvement

0:28

at the floor of the mouth. On the right side,

0:32

it remains confined to the floor of the mouth

0:39

and does not perforate the mylohyoid musculature.

0:43

This would be termed a simple ranula.

0:47

Does not go posterior to or through

0:51

the mylohyoid muscle.

0:53

Contrast that with this one.

0:56

Here we have the low density, which goes behind

1:00

the border of the mylohyoid muscle, and has an

1:06

extension that is coming out laterally towards

1:10

the submandibular gland.

1:13

Here's the submandibular gland.

1:14

Here's that lateral extension behind

1:17

the mylohyoid muscle.

1:19

So this has a...

1:21

most of its components is a simple ranula. However,

1:24

with this extension posteriorally and lateral to

1:28

the mylohyoid muscle and the perforation

1:31

of that mylohyoid muscle,

1:33

we would call that a plunging ranula.

1:36

So simple, simple plunging ranula,

1:42

bilateral ranula in a patient who is just pretty unlucky.

Bilateral Ranulas

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0:00

Let's end the discussion on ranula with this case.

0:04

This is a patient who has bilateral ranula.

0:07

Remember that ranula...

0:08

The term "ranula" refers to the Latin "rana,"

0:13

which is the frog.

0:15

And it has this lesion in the fore of the

0:18

mouth that looks sort of like a frog.

0:20

We'll go back to a diagram showing that. Here you

0:23

have the patient who has bilateral involvement

0:28

at the floor of the mouth. On the right side,

0:32

it remains confined to the floor of the mouth

0:39

and does not perforate the mylohyoid musculature.

0:43

This would be termed a simple ranula.

0:47

Does not go posterior to or through

0:51

the mylohyoid muscle.

0:53

Contrast that with this one.

0:56

Here we have the low density, which goes behind

1:00

the border of the mylohyoid muscle, and has an

1:06

extension that is coming out laterally towards

1:10

the submandibular gland.

1:13

Here's the submandibular gland.

1:14

Here's that lateral extension behind

1:17

the mylohyoid muscle.

1:19

So this has a...

1:21

most of its components is a simple ranula. However,

1:24

with this extension posteriorally and lateral to

1:28

the mylohyoid muscle and the perforation

1:31

of that mylohyoid muscle,

1:33

we would call that a plunging ranula.

1:36

So simple, simple plunging ranula,

1:42

bilateral ranula in a patient who is just pretty unlucky.

Report

Description

Faculty

David M Yousem, MD, MBA

Professor of Radiology, Vice Chairman and Associate Dean

Johns Hopkins University

Lesson

Salivary Glands

Bilateral Ranulas