Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest were obtained . No focal consolidation , pleural effusion , or evidence of pneumothorax is seen . At the right lung apex , there is a linear high density , which may relate to prior procedure , external artifact or chronic scarring . Correlate with clinical history . Cardiac and mediastinal silhouettes are unremarkable . No displaced fracture is identified .
    OUTPUT:
    
Linear high density projecting over the right apex could relate to prior procedure , scarring , external artifact . Correlate with clinical history . No focal consolidation . No findings to suggest pneumothorax .