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Primary extranodal lymphomas, occurrence
•
Constitute about ½ of localized lymphomas (stage I-II)
•
Constitute 20-25% of all non Hodgkin lymphomas
(NHL)
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Most common sites:
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Gastrointestinal tract
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Skin
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Waldeyer’s ring
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CNS
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Salivary glands
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Ocular adnexae