Lobar pneumonia chest radiographs, such as X-rays of both lungs, may show a slight thickening of the lung texture or a few lobes in some of the lungs in the early stages, and a relatively small number of faint shadows in the large segments of the lungs. As the inflammation progresses and the disease becomes more severe, the alveoli become filled with inflammatory exudate, which can be seen as a large, dense or solid shadow in the lobes of the lung segments. Typically, there will be a whiter white shadow of the lungs, which is a typical chest X-ray of solid lung lesions, and the bronchial insufflation sign can be seen faintly in the solid shadows. In some patients, the inflammatory exudate is large, and a small amount of fluid can be seen in the costophrenic angle, which may become obtuse or even disappear. With the further development of inflammation, slowly after the inflammation is absorbed, the flaky lung segments and lobar infiltration shadows will gradually dissipate until they disappear.