Interactive Transcript
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When we consider lymphoma of the parotid gland,
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we have multiple choices as far as what the etiology
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may be. This may be systemic lymphoma,
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which has spread via lymph nodes
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into the parotid gland,
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in which case we might see it bilateral and
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with multiple nodes in the parotid gland.
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However, it may be a primary parotid lymphoma.
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These are usually in association with, for example,
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Sjögren's syndrome,
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where you have a very high risk rate of lymphoma.
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Or it could be de novo
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mucosa-associated lymphoid type lymphoma,
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or so-called MALT lymphoma.
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This again is a biopsy diagnosis.
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Quite often they need flow cytometry as well,
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and most of these are non-Hodgkin's lymphomas.
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Here is a patient who has a primary MALT lymphoma.
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And you can see that it has a very diffuse
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infiltrative nature to the lesion,
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and it may actually be coming out of the
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parotid gland into the skin surface.
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You see just how superficial this is at the
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subcutaneous fat.
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Here is a patient who, as you can see,
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has a background of cystic lesions within the
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parotid gland and then had a superimposed mass
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associated with it with adjacent lymphadenopathy.
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This mass was biopsied and was lymphoma.
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And this patient had Sjögren's syndrome
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as a source of the lymphoma.
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This was another patient with primary parotid
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lymphoma without association with Sjögren's syndrome.
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And this was, again, a MALT lymphoma.
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