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.
Treatment. Treatments used in pleurisy and pleural effusion focus primarily on the underlying cause. For example, if bacterial pneumonia is the cause, an antibiotic will control the infection. If the cause is viral, pleurisy will resolve on its own. The outcome of pleurisy treatment depends on the seriousness of the underlying disease. If the condition that caused pleurisy is diagnosed and treated early, a full recovery is typical. Lifestyle and home remedies. The following steps might help relieve symptoms related to pleurisy: