Cardiac tumors - benign
Endocardial fibroelastosis

Topic Completed: 1 November 2013

Revised: 26 September 2019

Copyright: 2007-2019, PathologyOutlines.com, Inc.

PubMed Search: Endocardial fibroelastosis [title] review[ptyp]

Nat Pernick, M.D.
Page views in 2018: 572
Page views in 2019 to date: 630
Cite this page: Pernick N. Endocardial fibroelastosis. PathologyOutlines.com website. http://www.pathologyoutlines.com/topic/hearttumorendocardialfibroelastosis.html. Accessed October 16th, 2019.
Definition / general
Case reports
  • Heart transplant
Gross images

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Pale opaque endocardium

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Neonate-A: endocardium of left ventricle is grossly thickened, and extends into myocardial sinusoids (arrow)
B: von Gieson elastin stain shows endocardium is composed of bands of collagen and elastic fibers

Microscopic (histologic) description
  • Increased fibroelastic tissue in endocardium and subendocardium
  • Myocardium usually normal
Microscopic (histologic) images

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Low power

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von Gieson elastic stain

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Trichrome stain shows marked firous thickening of endocardium

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