Malar Flush

Malar flush is a plum-red discolouration of the high cheeks. It is classically associated with mitral valve stenosis due to the resulting CO₂ retention and its vasodilatory effects. It can also be associated with lupus and polycythemia vera.

Definition

Malar flush is a plum-red discolouration of the high cheeks.

Pathophysiology

Mitral valve stenosis may cause malar flush due to CO₂ retention, which causes vasodilation of arterioles in the cheeks.

It can also be associated with other conditions, such as lupus, and polycythemia vera.

See also

• Malar rash