Summarize the radiology report findings into an impression within 3 sentences.
    INPUT: The heart is normal in size . The mediastinal and hilar contours are unremarkable . There is no pleural effusion or pneumothorax . The lungs are well - expanded and clear without focal consolidation concerning for pneumonia . A small nodular density at the right lung apex is noted , which may represent costochondral cartilage of the first rib or a nodule . The upper abdomen is unremarkable . There is no acute osseous abnormality .
    OUTPUT:
    
Nodular opacity at the right apex , which may represent costochondral cartilage versus an nodule . Shallow oblique films are recommended for further evaluation .