Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: AP and lateral chest radiographs demonstrate an ill - defined nodular opacity in the right upper lung not seen on prior radiograph . There is no pleural effusion or pneumothorax . The cardiomediastinal silhouette is normal .
    OUTPUT:
    
Ill - defined nodular density in right upper lung can be further charachterized with oblique views or non-emergent CT - Chest .