Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . The heart size is mildly enlarged . Increased opacity at the medial right lung apex is increased since ___ . Though this may represent a mediastinal vessel , a mass is not excluded . Pulmonary vascular markings are unremarkable . No focal consolidation , substantial pleural effusion , or pneumothorax . No radiopaque foreign body .
    OUTPUT:
    
An opacity at the medial right lung apex has increased since ___ . Non-emergent CT ( ideally with contrast ) is recommended for further evaluation . Findings were communicated via phone on ___ at ___ by Dr . ___ to Dr . ___ .