Right ventricular cardiomyopathy

What it means

Right ventricular dysfunction (global or regional) with functional and morphological right ventricular abnormalities, with or without left ventricular disease.

This feature is most often seen in the disease arrhythmogenic right ventricular cardiomyopathy (ARVC). ARVC is defined histologically by the presence of progressive replacement of right ventricular myocardium with adipose and fibrous tissue often confined to a triangle of dysplasia comprising the right ventricular inflow, outflow, and apex. While these pathologic abnormalities can result in functional and morphological right ventricular abnormalities, they also occur in the left ventricle, producing a DCM phenotype, or can be present in the absence of clinically detectable structural changes in either ventricle. For the purposes of this classification, ARVC is defined by the presence of right ventricular dysfunction (global or regional), with or without left ventricular disease, in the presence of histological evidence for the disease and/or electrocardiographic abnormalities in accordance with published criteria.

Rare diseases that can present with this2

The range is how often this sign appears among people diagnosed with each disease — it is not a probability of having any of them. Many of these signs also occur in common, non-rare conditions. A sign on this page is a conversation to have with a clinician, not a conclusion.

Part of the broader category

Also called: Cardiomyopathy, esp. right ventricular · Cardiomyopathy, right ventricular