Colon tumor
Polyps
Inflammatory fibroid polyp




Topic Completed: 1 May 2012

Revised: 9 January 2019, last major update May 2012

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PubMed Search: Inflammatory fibroid polyp AND colon

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Cite this page: Bandovic J. Inflammatory fibroid polyp. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colontumorinflammatoryfibroid.html. Accessed February 18th, 2019.
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