Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Portable AP upright chest radiograph provided . When compared with a prior CT of the abdomen and pelvis dated ___ , a curvilinear calcification projecting over the left lung base corresponds with a partially calcified left ventricular aneurysm . Overall appearance is unchanged from prior exam dating back to ___ . There are low lung volumes which somewhat limit the evaluation , though allowing for this there is no focal consolidation , effusion or pneumothorax . The heart size is enlarged . The mediastinal contour is stable . The imaged osseous structures are intact . An AICD is again seen with leads extending to the region of the right atrium and right ventricle .
    OUTPUT:
    
Cardiomegaly with no acute intrathoracic process . Stable calcified rounded density in the left lung base is unchanged and relates to a calcified left ventricular aneurysm .