According to Dameshek, true polycythemia (polycythemia vera: PV) is a chronic myeloproliferative disorder of the total bone marrow without any evidence of invasiveness, in which erythrocytosis, leukocytosis, and thrombocytosis are all simultaneously present.
However, in patients suffering from connective tissue disease or lung cancer, chest pain may persist for long periods. What Causes Pleurisy? Pleurisy may occur inhealthy, young people who have an infection in the lungs caused by bacteria or virus. Pleurisy may last a few days or up to two weeks. In rare cases, the infection may spread, causing pleurisy in other people. Pleurisy may also be associated with air leaking in the pleural cavity from a punctured lung, a condition called pneumothorax.
Historical Examples. 1  I had an attack of pleurisy after this, and was twenty-three days between life and death. 2  My distemper was a pleurisy, which very nearly carried me off. 3  Suddhoo's son at Peshawar was attacked by pleurisy, and old Suddhoo was troubled. 4  Not since Stephen was bad with pleurisy had she felt so worried.