Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: PA and lateral chest views were obtained with patient in upright position . The heart size is within normal limits . No configurational abnormality is identified . Thoracic aorta unremarkable . The pulmonary vasculature is not congested . Lateral and posterior pleural sinuses are free from any fluid accumulation . There is a mild elevation of a left - sided hemidiaphragm apparently related to a rather gas distended colon . No significant skeletal abnormality are identified within the chest area . There exists no prior chest examination or records available for comparison .
    OUTPUT:
    
Chest findings within normal limits , no evidence of pleural effusion .