Sunday, March 15, 2015
Restrictive Cardiomyopathy
Causes :
Amyloidosis
Endomyocardial fibrosis and Endocardial fibroelastosis
Radiotherapy
hemochromatosis
Loeffler’s endocarditis – eosinophilic infiltrate due to invasive helminthiasis
Clinical Features:
Presentation similar to constrictive pericarditis with signs of failure, raised JVP with Kussmaul sign,
Also prone to conduction blocks due to fibrosis
Morphology:
Atrial dilataion due to inadequate ventricular filling
Ventricles are stiff with thick opaque endocardium and valves
Intramural thrombi due to stasis
M/E shows dense fibrosis in endocardial layer
Increased eosinophil infiltration in Loeffler syndrome
Amyloidosis – notice the pink material between the myocytes.
Amyloidosis – Congo Red is very, very positive.
Endomyocardial fibrosis – fibrosis under the endocardium and in the the inner
third of the myocardium.
Endomyocardial fibrosis of a ventricular wall. When extensive, this would cause
restrictive heart failure too.
Subscribe to:
Post Comments (Atom)
No comments:
Post a Comment