Lung tumor
Lymphoma and lymphoid infiltrates

Author: Deepali Jain, M.D. (see Authors page)

Revised: 3 January 2017, last major update September 2012

Copyright: (c) 2003-2017,, Inc.

PubMed Search: chronic lymphocytic leukemia / small lymphocytic lymphoma
Cite this page: CLL / SLL. website. Accessed April 23rd, 2017.
Definition / General
  • Chronic lymphocytic leukemia / small lymphocytic lymphoma
  • 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