Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral views of the chest demonstrate normal lung volumes without pleural effusion , focal consolidation or pneumothorax . Hilar and mediastinal silhouettes are unremarkable . Heart size is normal . There is no pulmonary edema . A 3 mm nodular opacity projects over the left mid lung zone . Partially imaged upper abdomen is unremarkable .
    OUTPUT:
    
1 . No evidence of acute cardiopulmonary process . 2 . A 3 mm nodular opacity projecting over left mid lung zone of indeterminate chronicity due to lack of prior exams . If prior exams can not be obtained for comparison , a chest CT may be obtained for further assessment or alternatively , this lesion may be followed with conventional chest radiographs in six months . Findings emailed to QA nurse for communication at 4 : 10 pm ___ by phone .