Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a moderate - to - large right basilar opacity silhouetting the hemidiaphragm and likely due to large pleural effusion . Underlying consolidation is also possible . Position of the left - sided central line with tip in the region of the mid SVC . There is likely some shift of the mediastinal structures to the left . There is also shift of the trachea at the thoracic inlet to the left as well . The left lung is grossly clear noting some limitation due to motion . No acute osseous abnormality is detected .
    OUTPUT:
    
Large right basilar opacity compatible with large pleural effusion causing some degree of mediastinal shift to the left . Underlying atelectasis and possible consolidation in the right lung .