Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Upright and lateral views of the chest were obtained . Large body habitus somewhat limits the evaluation though allowing for this . The lungs appear clear bilaterally . Heart size is borderline enlarged . Mediastinal contour is unremarkable . No pneumothorax or pleural effusion is seen . Degenerative changes are noted in the thoracic spine .
    OUTPUT:
    
Borderline cardiomegaly without acute intrathoracic process .