What do you mean by small patchy shadows in the lungs?

Lung patchy images can also be seen on X-ray or chest CT reports. Patchy images are mainly formed after inflammatory or other substances are filled in the pulmonary lobules. Most of them are seen in infectious diseases, which can be seen in acute infections or chronic infections. Lobular pneumonia is more common. After a cold or respiratory infection, the upper respiratory tract gradually affects the pulmonary lobules. Patchy images can be shown on CT or X-ray images. However, there are also some chronic diseases, such as long-term exposure to dust, particles or other foreign bodies, lung lobules will also show small patchy shadows. Therefore, the doctor must combine the clinical history of the patient and special physical examination signs to determine the nature of the disease.