In recognition of Valentine's Day, we present 2 incidental heart-shaped findings we encountered within the hearts of 2 patients during 2-dimensional transthoracic echocardiographic studies. In Photo A, a short axis view of the heart of a 54-year-old woman, the opening of the tricuspid aortic valve simulates the "Valentine's sign," or heart shape. Photo B showsa normal tricuspid aortic valve in another woman for comparison. Photo C, an apical 4-chamber view with color-flow Doppler application in a 57-year-old woman, shows mosaic mitral regurgitation in the shape of an upside-down heart. Photo D shows non-heart-shaped mosaic mitral regurgitation in another woman for comparison.