Colon non tumor
Non-neoplastic, non-congenital lesions
Elastofibromatous change

Author: Raul S. Gonzalez, M.D. (see Authors page)

Revised: 10 January 2017, last major update September 2013

Copyright: (c) 2003-2017, PathologyOutlines.com, Inc.

PubMed Search: elastofibromatous
Cite this page: Elastofibromatous change. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/colonelastofibromatous.html. Accessed January 18th, 2017.
Definition / General
  • Uncommon; increase in elastin fibers in colonic submucosa
Terminology
  • Also called elastosis
  • Called elastofibroma if forms a polyp
Sites
  • Occurs throughout gastrointestinal tract
  • In colon, favors left side; can present in rectum
Clinical Features
  • Patients typically older than 45
  • No sex predilection
  • May cause nonspecific gastrointestinal symptoms or be asymptomatic
Case Reports
Gross Description
  • May appear as a polyp or as a linear white lesion
Micro Description
  • Eosinophilic to gray amorphous material, sometimes with fibrous tissue, involving submocusa or muscularis mucosae
  • May be centered around blood vessels (Am J Clin Pathol 2004;122:232)
Micro Images

Images hosted on other servers:

Submucosal elastofibromatous change mimicking amyloid

Elastin stain

Positive Stains
  • Elastin stain highlights elastic fibers
Negative Stains
Differential Diagnosis
  • Amyloidosis: shows birefringence with Congo red stain