Small bowel (small intestine)
Benign tumors and tumor-like conditions
Reactive nodular fibrous pseudotumor


Topic Completed: 1 August 2012

Revised: 13 March 2019

Copyright: 2003-2019, PathologyOutlines.com, Inc.

PubMed Search: Reactive nodular fibrous pseudotumor

Hanni Gulwani, M.B.B.S.
Page views in 2018: 290
Page views in 2019 to date: 305
Cite this page: Gulwani H. Reactive nodular fibrous pseudotumor. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/smallbowelreactivenodular.html. Accessed September 18th, 2019.
Definition / general
Gross description
  • Firm, tan white, 4 - 6 cm, solitary / multiple, in small bowel or colon
Microscopic (histologic) description
  • Low / moderate cellularity
  • Spindled fibroblasts arranged haphazardly or in intersecting fascicles
  • Often infiltrative borders
  • Stroma rich in wire-like, keloidal or hyalinized collagen
  • Peripheral lymphoid aggregates
Negative stains
Differential diagnosis
Back to top