Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The lungs are clear . There is no pleural effusion , pneumothorax , or focal airspace consolidation . Accounting for technique the heart size is normal . Enlargement of the pulmonary arteries is unchanged . Overlying soft tissue obscures fine osseous detail .
    OUTPUT:
    
No acute intrathoracic process with unchanged enlargement of the pulmonary arteries .