Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: Frontal and lateral chest radiographs demonstrate low lung volumes , though the lungs are clear without effusion or pneumothorax . The heart size is normal , the mediastinal contours are unremarkable . Pulmonary vasculature is normal in appearance . Incidental note is made of a right cervical rib .
    OUTPUT:
    
No acute chest pathology .