Small bowel (small intestine)
Waldenström macroglobulinemia

Author: Hanni Gulwani, M.D. (see Authors page)

Revised: 22 February 2018, last major update August 2012

Copyright: (c) 2003-2018,, Inc.

PubMed Search: Waldenström macroglobulinemia small bowel

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Cite this page: Gulwani, H. Waldenström macroglobulinemia. website. Accessed January 21st, 2019.
Definition / general
  • Rare but distinctive involvement of small bowel
Gross description
  • Small white nodules, variably distended serosal lymphatics
  • Mucosa is white, nodular or granular
Microscopic (histologic) description
  • Marked mucosal and submucosal lymphangiectasia and short, broad villi (Medicine (Baltimore) 2007;86:210)
  • Coarse eosinophilic material (macroglobulin) in lymphatics, macrophages, lamina propria