Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral views of the chest were provided . On the lateral view , there appears to be a posterior , possibly pleural - based subtle opacity projecting over the upper lungs . Given the history of hemoptysis , consider CT to further assess . Otherwise , the lungs are clear . The cardiomediastinal silhouette appears normal . Bony structures are intact .
    OUTPUT:
    
Possible mass positioned posteriorly on the lateral view in the upper lungs . Recommend CT to further assess .