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

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

Revised: 20 February 2018, last major update August 2012

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

PubMed Search: Reactive nodular fibrous pseudotumor

Cite this page: Gulwani, H. Reactive nodular fibrous pseudotumor. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/smallbowelreactivenodular.html. Accessed October 20th, 2018.
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