Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP single view of the chest has been obtained with patient in supine position . Analysis is performed in direct comparison with the next preceding similar study obtained eight hours earlier during the same day . The left - sided basal density that obliterates the diaphragmatic contour and widens the space of the lateral pleura along the chest wall remains and may have even increased slightly . Aerated volume of the left lung appears compromised . Comparison is made with the next previous PA and lateral chest examination of ___ . The position of the previously described left - sided chest tube is unchanged , terminates in the axillary area where its final tip is slightly bent in caudal direction . Provided that chest tube drainage is free , one would have expected some reduction in the densities if caused by pleural effusion . One therefore should also consider hematoma formation within the chest wall itself following the thoracic surgical placement of the epicardial electrodes to the lateral wall of the left ventricle . Position of previously described permanent pacer with ICD and right atrial electrode remains as before .
    OUTPUT:
    
Situation was discussed with referring physician , ___ . ___ ___ . Hematocrit remains stable . If surgical revision is required , one should consider also sizable chest wall hematoma rather than pleural effusion alone .