Dysplastic tricuspid valve

What it means

A congenital malformation of the tricuspid valve characterized by leaflet deformation.

Malformations of the tricuspid valve include a wide range of morphologic features that can be divided into two main groups: those in which the primary lesion is downward displacement of the basal attachment of the mural and septal (or both) leaflets, known as Ebstein's malformation (1), and those without downward displacement but with deformation of the leaflets and the tension apparatus, an arrangement described as dysplasia. In severe cases of dysplasia, the tricuspid valve orifice may become unguarded. Although there is a broad morphologic spectrum, these malformations lead to the same hemodynamic burden, namely, tricuspid regurgitation (TR) and its pathophysiological sequelae.

Rare diseases that can present with this1

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: Tricuspid valve dysplasia