Pleurisy can also be detected in chest radiographs, but it depends on the type. There are two types of pleurisy: dry and wet. Dry pleurisy cannot be clearly identified, while wet pleurisy, which is mostly caused by tuberculosis, can show more typical characteristics. Tuberculous pleurisy primarily manifests as pleural effusion. A small amount of pleural effusion on an X-ray appears as blunting of the costophrenic angle on the same side and blurring of the diaphragm. A moderate amount of pleural effusion is shown on the chest radiograph as a uniformly consistent high-density shadow on the same side, which appears higher on the outside and lower on the inside, with an arc-shaped shadow. The muscle costophrenic angle and diaphragm are obscured. A large amount of pleural effusion presents as a high-density shadow in the pleural cavity on the same side, with the mediastinal cardiac silhouette clearly shifting to the interlateral side.