PATHOLOGY OF TRICUSPID-VALVE STENOSIS AND PURE TRICUSPID REGURGITATION .3.

This three-part article examines the histologic and morphologic basis for stenotic and purely regurgitant tricuspid valves. In Part III, mor phometric analysis of tricuspid valve annular circumference, leaflet a rea, and the product of annular circumference and leaflet area are sho wn to be useful in establishing etiology for the purely regurgitant tr icuspid valves and in assessing the anatomic basis of pure tricuspid r egurgitation in the presence of mitral stenosis.