Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is mildly enlarged and there are prominent mitral annular calcifications . Prominent soft tissue density abuts the upper right mediastinum . Small hazy opacity is present in the left lung base . Coarse interstitial lung markings appear chronic . No pleural effusion or pneumothorax . Distal right clavicle fracture appears chronic .
    OUTPUT:
    
1 . Small left base opacity may represent pneumonia or aspiration . 2 . Prominent soft tissue density abutting the upper right mediastinum may represent tortuosity of vessels or thyroid lesion . A paramediastinal mass is thought less likely . Additional imaging may be obtained as clinically warranted . 3 . Mild cardiomegaly .