Pseudotumoral Mediastinal Mass Associated with Portal Hypertension

CHEST, 72: 6, DECEMBER, 1977 probably would have demonstrated sonolucency posterior to the posterior left atrial wall. This would suggest a cause other than pericardial effusion for the sonolucency.’ The right atrial angiogram demonstrated an irregular right atrial endocardial border and a 2-cm separation between the right cardiac border and right atrial wall. If the thickness of the separation on the cineangiogram does not change with cardiac action (the patient had a regular heart rate of 140 beats per minute, which, from the echocardiogram of the mitral valve, appeared to be sinus), then causes other than pericardial effusion should be considered.’ A description of the presence or absence of such fluid waves on angiograms would be of interest. Lewis Sass#{233}, M.D., F.C.C.?. Southern California Permanente Medical Group Los Angeles