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Small bowel (small intestine)


Lymphoplasmacytic lymphoma

Reviewer: Hanni Gulwani, M.D. (see Reviewers page)
Revised: 22 December 2012, last major update August 2012
Copyright: (c) 2003-2012, PathologyOutlines.com, Inc.


● Low-grade B-cell lymphoma characterized by proliferation of small and plasmacytoid lymphocytes and plasma cells containing monoclonal intracytoplasmic immunoglobulins
● Often associated with serum viscosity syndrome due to IgM
● Formerly called immunocytoma


● Monoclonal serum gammopathy

Case reports

● 57 year old woman with obstructive tumor (Arch Pathol Lab Med 2001;125:677)

Micro description

● Nodular or diffuse transmural infiltrate of small lymphocytes, mature plasma cells, lymphoplasmacytoid cells associated with extracellular PAS+ material

Micro images

Various images

End of Small bowel (small intestine) > Lymphoma > Lymphoplasmacytic lymphoma

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