Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: There is a partially calcified rounded density projecting over the mediastinum near the AP window compatible with calcified lymph nodes . Several scattered punctate parenchymal densities , may be granulomas , sequela of prior granulomatous infection such as histoplasmosis versus vessels on end . Lungs are otherwise fully expanded and clear . No pleural effusion or pneumothorax . Heart size is normal . Cardiomediastinal and hilar silhouettes are normal .
    OUTPUT:
    
No acute cardiopulmonary process .