Mohan, J CSengupta, P PArora, R2001-07-052009-05-272001-07-052009-05-272001-07-05Mohan JC, Sengupta PP, Arora R. Congenitally unguarded tricuspid valve orifice with a giant right atrium and a massive clot in an asymptomatic adult. Indian Heart Journal. 2001 Jul-Aug; 53(4): 503-4http://imsear.searo.who.int/handle/123456789/5593Congenitally unguarded tricuspid valve orifice, a variant of tricuspid valve dysplasia, is a rare malformation with protean manifestations. This report describes an asymptomatic adult who, on echocardiographic examination ordered in view of an abnormal 12-lead surface electrocardiogram and plain chest X-ray, was found to have an unguarded tricuspid valve orifice with a giant right atrium (12 x 10 cm), intense spontaneous echo contrast and a large right atrial clot.engAdultCardiomegaly --congenitalCoronary Thrombosis --congenitalHeart Atria --abnormalitiesHeart Valve Diseases --congenitalHumansMaleTricuspid Valve --abnormalitiesCase Reports