Colon tumor
Polyps
Inflammatory fibroid polyp

Author: Jela Bandovic, M.D. (see Authors page)

Revised: 14 December 2016, last major update May 2012

Copyright: (c) 2003-2016, PathologyOutlines.com, Inc.

PubMed Search: Inflammatory fibroid polyp AND colon

Cite this page: Inflammatory fibroid polyp. PathologyOutlines.com website. http://pathologyoutlines.com/topic/colontumorinflammatoryfibroid.html. Accessed November 22nd, 2017.
Definition / general
  • Uncommon in colon
  • Any age, no clinical associations
  • Benign
Case reports
Treatment
Gross description
  • Mean 3 - 4 cm, polypoid with broad base
  • Tan / gray / yellow; overlying mucosa may be ulcerated
Gross images

Images hosted on other servers:

Small bowel

Microscopic (histologic) description
  • Usually limited to submucosa
  • Spindle cell lesion in fibrovascular stroma with chronic inflammatory infiltrate including eosinophils
  • May be sparsely cellular with myxoid stroma
  • Cellular areas may have up to 2 mitotic figures / HPF
  • May have rarefaction (zone of loose connective tissue) around muscular walled blood vessels
Microscopic (histologic) images

Images hosted on other servers:

Small bowel

Thick wall vessel (figure 3)

Negative stains
Differential diagnosis