Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged , allowing for rightward rotation and portable technique . There is no pleural effusion or pneumothorax . Projecting over the right mid lung is a nodular focus , perhaps an artifact involving confluence of normal vascular shadows , although a lung nodule should be considered and excluded .
    OUTPUT:
    
No evidence of acute disease . Potential nodule projecting over the right mid lung . As a first step in further assessment , when clinically appropriate , standard PA and lateral radiographs are suggested to evaluate further when feasible versus chest CT .