<Tr> <Th> Usual onset </Th> <Td> Elderly </Td> </Tr> <Tr> <Th> Risk factors </Th> <Td> Decreased level of consciousness, problems with swallowing, alcoholism, tube feeding, poor oral health </Td> </Tr> <Tr> <Th> Diagnostic method </Th> <Td> Based on presenting history, symptoms, chest X-ray, sputum culture </Td> </Tr> <Tr> <Th> Differential diagnosis </Th> <Td> Chemical pneumonitis, tuberculosis </Td> </Tr>

Where does aspiration pneumonia show up on xray