Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a small right pleural effusion and a sharply demarcated homogeneous noncalcified opacity the density of soft tissue in the right lower lobe obscuring the right hemidiaphragm . On the lateral view it is seen as a triangular sharply demarcated opacity projecting posterior to the left ventricle with likely opacification of the right middle lobe . No additional focal opacity , pneumothorax , pulmonary edema , or left pleural effusion . Heart size , mediastinal contour and hila are normal . No bony abnormality .
    OUTPUT:
    
1 . Small right pleural effusion . 2 . Homogeneous sharply demarcated triangular opacity is likely a soft tissue density and may be fluid collected posterior to the graft . 3 . No pneumothorax .