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Lung tumor

Lymphoma and lymphoid infiltrates


Reviewer: Deepali Jain, M.D. (see Reviewers page)
Revised: 22 January 2013, last major update September 2012
Copyright: (c) 2003-2013, PathologyOutlines.com, Inc.


● Small lymphoblastic lymphoma / chronic lymphocytic leukemia
● Usually asymptomatic pulmonary nodules or infiltrates in elderly
● Involves the lung at autopsy in 30% of cases, may cause significant pulmonary impairment

Gross description

● Well defined, encapsulated mass, homogenous gray cut surface

Micro description

● Monomorphic low grade lymphocytic infiltrate with pseudofollicles

Differential diagnosis

● Reactive lymphoid infiltrate: polymorphic lymphocytes, germinal centers, other inflammatory cells

End of Lung tumor > Lymphoma and lymphoid infiltrates > SLL/CLL

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