Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The cardiac silhouette size is normal . Rightward deviation of the trachea with a prominent left superior mediastinal soft tissue structure is compatible with a multinodular thyroid goiter , as seen on the prior CT of the cervical spine . Lung volumes are low . This causes crowding of bronchovascular structures . No overt pulmonary edema is present . Streaky bibasilar opacity is noted without focal consolidation . No large pleural effusion or pneumothorax is detected on this supine exam . No displaced fractures are evident .
    OUTPUT:
    
Low lung volumes with bibasilar atelectasis . Multinodular thyroid goiter causing rightward deviation of the trachea , as seen on the CT of the cervical spine .