Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart size is normal . The mediastinal and hilar contours are unremarkable . The pulmonary vascularity is normal . Linear opacity in the right middle lobe is compatible with subsegmental atelectasis . No focal consolidation , pleural effusion or pneumothorax is present . Partially imaged is an intra medullary rod with multiple screws in the left humerus . A right - sided VP shunt catheter is partially imaged . Diffuse demineralization of the osseous structures is present . Compression deformity of a mid thoracic vertebral body is again noted , but better demonstrated on the prior exam .
    OUTPUT:
    
Subsegmental atelectasis in the right middle lobe . Otherwise no acute cardiopulmonary abnormality .