Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac , mediastinal and hilar contours appear unchanged . Trace pleural effusions are suspected due to slight blunting of each costophrenic sulcus . Minor streaky left lower lung opacification suggests minor atelectasis . The patient is status post incompletely characterized cervical fusion . Asymmetrical widening of the right acromioclavicular joint is noted similar to films at presentation .
    OUTPUT:
    
1 . Streaky left basilar opacification suggesting atelectasis ; findings are not particularly suspicious for pneumonia ; however , follow - up radiographs could be considered if unexplained fever or pulmonary symptoms were to persist . 2 . Asymmetrical widening of the right acromioclavicular joint with no recent change although of uncertain chronicity otherwise ; correlation with physical findings and mechanism of trauma suggested .