Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP portable upright view of the chest . The heart is moderately enlarged . The hilar and upper mediastinal contours are within normal limits . There is no pneumothorax , focal consolidation , or pleural effusion . The examination is minimally changed since ___ .
    OUTPUT:
    
Stable moderate cardiomegaly . No superimposed acute intrathoracic process .