Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Endotracheal tube terminates at the inferior margin of the clavicles . Partial right upper lobe collapse with elevation of the minor fissure is new since the exam 24 hours ago . There is a new contour irregularity of the left main stem bronchus at the takeoff of the left upper lobe bronchus . Left basilar atelectasis is similar . No effusion or pneumothorax is present .
    OUTPUT:
    
New right upper lobe partial collapse and contour abnormality of the left main stem bronchus suggests the possibility of mucous plugging causing the atelectasis . A bronchoscopy may be helpful to identify and clear potential mucous plugging . Findings were discussed via telephone with Dr . ___ at 10 :30 on ___ .