Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Lateral views are limited due to soft tissue attenuation . The heart is mild - to - moderately enlarged with a left ventricular configuration . Chin flexion obscures the upper portion of the mediastinum . There is no definite pleural effusion or pneumothorax , although visualization of the left lung base is limited due to soft tissue attenuation . Within the limitations of technique , there is no definite abnormality .
    OUTPUT:
    
Limited examination , but no definite evidence of acute cardiopulmonary disease .