Pleurisy

Pleurisy, also known as "pleuritis," is an inflammation of the pleura. Pleurisy is an inflammation of the pleura caused by stimulation of the pleura by pathogenic factors (usually viruses or bacteria). There may be fluid accumulation in the pleural cavity (exudative pleurisy) or no fluid accumulation (dry pleurisy). After the inflammation subsides, the pleura may return to normal, or the two layers of pleura may adhere to each other. It is caused by various etiologies, such as infection, malignant tumors, connective tissue diseases, pulmonary embolism, etc.