Pleural mound protrusion may be caused by trauma, infection, tumor and other factors.
1. Trauma: trauma can lead to closed pulmonary contusion, causing capillary rupture, blood accumulation will be accumulated in the chest cavity, which can be manifested as pleural mound protuberance.
2. Infection: when the pleura is infected, the fluid exuded from the inflammation will be deposited locally, resulting in adhesion and thickening of the pleura; or fibrin deposition and granulation tissue proliferation due to pleural infection, which will result in pleural thickening. Both of the above situations can lead to pleural mound-like protuberance.
3. Tumor: such as pleural mesothelioma, tumor lesions will stimulate the pleura, resulting in pleural effusion, pleural thickening and other symptoms, which can be manifested as pleural papillae.
Lung cancer may also lead to pleural papillae, which is used for the lesion to easily invade the pleura, and when the pleura is stimulated, limited thickening may occur, and then pleural papillae may appear.
When pleural papillae are found on examination, the cause of the disease should be identified and treated.