A Right Ventricle Type-B Thrombus with Massive Pulmonary Thrombo-Embolism: Crucial Role of Echocardiography

Right sided heart thrombi may develop within the right heart chambers or they may be peripheral venous clots that on their way to the lungs, accidentally lodge in a patent foramen ovale, tricuspid chordae or Chiari-s network. They have an association with high risk pulmonary embolism. Three patterns of right heart thrombi have been described. Type A thrombi are mainly localized in the right atrium, have a worm-like shape and are extremely mobile. Type B thrombi attach to the atrial or ventricular wall and are nonmobile. Type C thrombi are rare and are highly mobile. We describe a case of a young male with a massive pulmonary embolism where transthoracic echocardiography revealed type B thrombus in right ventricle.