0:00

When we consider lymphoma of the parotid gland,

0:04

we have multiple choices as far as what the etiology

0:07

may be. This may be systemic lymphoma,

0:11

which has spread via lymph nodes

0:13

into the parotid gland,

0:14

in which case we might see it bilateral and

0:16

with multiple nodes in the parotid gland.

0:19

However, it may be a primary parotid lymphoma.

0:23

These are usually in association with, for example,

0:27

Sjögren's syndrome,

0:28

where you have a very high risk rate of lymphoma.

0:32

Or it could be de novo

0:35

mucosa-associated lymphoid type lymphoma,

0:38

or so-called MALT lymphoma.

0:42

This again is a biopsy diagnosis.

0:46

Quite often they need flow cytometry as well,

0:49

and most of these are non-Hodgkin's lymphomas.

0:55

Here is a patient who has a primary MALT lymphoma.

1:00

And you can see that it has a very diffuse

1:03

infiltrative nature to the lesion,

1:07

and it may actually be coming out of the

1:09

parotid gland into the skin surface.

1:11

You see just how superficial this is at the

1:17

subcutaneous fat.

1:22

Here is a patient who, as you can see,

1:24

has a background of cystic lesions within the

1:28

parotid gland and then had a superimposed mass

1:33

associated with it with adjacent lymphadenopathy.

1:37

This mass was biopsied and was lymphoma.

1:39

And this patient had Sjögren's syndrome

1:42

as a source of the lymphoma.

1:48

This was another patient with primary parotid

1:50

lymphoma without association with Sjögren's syndrome.

1:55

And this was, again, a MALT lymphoma.

Parotid Lymphoma - Summary

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