Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are well expanded . Linear left basilar opacity is likely atelectasis . The lungs are otherwise clear noting some limitation secondary to motion . Cardiac silhouette is mildly enlarged potentially in part due to portable technique with underlying cardiomegaly also suspected . No acute osseous abnormality identified .
    OUTPUT:
    
No definite acute cardiopulmonary process on this motion limited exam . Left basilar atelectasis .