Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: This study was not made available for my interpretation until today , ___ . Frontal and lateral views of the chest were obtained . Increased opacity at the right lung base is likely due to overlapping vascular structures . There is no focal consolidation , pleural effusion or pneumothorax . Heart size is top normal . Mediastinal silhouette and hilar contours are normal .
    OUTPUT:
    
No acute intrathoracic process . CT is more sensitive for detection of mass lesions .