Fluid may also build up due to certain cancer treatments, such as radiation therapy or chemotherapy.Ĭertain cancers are more likely to cause pleural effusions than others, including: Pleural effusions can occur when cancer cells spread to the pleura or block the flow of normal fluid within the pleura. Some conditions, such as pulmonary embolism, can lead to either transudate or exudate pleural effusion. hemothorax, when blood collects in the pleural cavity.chylothorax, which results from an obstruction in the lymph vessels.inflammatory conditions, such as pancreatitis, lupus, or rheumatoid arthritis.This happens when a buildup of fluid occurs as the result of:Ĭonditions that could result in this type of pleural infusion include: have malnutrition due to low albumin levels in the blood.This type is caused by fluid leaking into the pleural space due to increased pressure in the blood vessels. Pleural effusion can be classified as transudative or exudative. certain types of cancer for instance, lung cancer and breast cancer.the use of some medications, such as methotrexate, phenytoin, or amiodarone.

autoimmune diseases, such as lupus and rheumatoid arthritis.pulmonary embolism, which is caused by a blood clot and is a blockage in the lung arteries.These can result in extra fluid production, reduced drainage, or both. It occurs with coronary heart disease or cirrhosis.Įxudative pleural effusion happens when there is irritation, inflammation, or infection. Transudative pleural effusion happens when increased pressure on the small and large vessels of various organs causes them to be leaky, resulting in protein-filled fluid collections. It can be either transudative or exudative. Pleural effusion happens when fluid accumulates in the chest cavity outside the lung.

Pleural fluid