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A pleural effusion is accumulation of excessive fluid in the pleural space, the potential space that surrounds each lung.Under normal conditions, pleural fluid is secreted by the parietal pleural capillaries at a rate of 0.6 millilitre per kilogram weight per hour, and is cleared by lymphatic absorption leaving behind only 5–15 millilitres of fluid, which helps to maintain a functional ...
The cause is unknown, but it may be due to an abnormal immune response. [2] Risk factors include family history, certain genetic factors, and exposure to silica . [ 3 ] [ 4 ] [ 5 ] The underlying mechanism involves the abnormal growth of connective tissue , which is believed to be the result of the immune system attacking healthy tissues. [ 6 ]
Lymphangioleiomyomatosis (LAM) occurs in the lung and may result in pneumothorax, cystic lung destruction and pleural effusions. Symptoms which occur as a result may include fatigue, chest pain and shortness of breath. It occurs in approximately 30-40% of women with TSC, up to 80% by the age of 40, and it is much less common in men. [36]
In some cases of pleural effusion, the excess fluid becomes infected and turns into an abscess. This is called an empyema. Pleural effusion involving fibrinous exudates in the fluid may be called fibrinous pleurisy, which sometimes occurs as a later stage of pleurisy. A person can develop a pleural effusion in the absence of pleurisy.
Hydrothorax is the synonym of pleural effusion in which fluid accumulates in the pleural cavity. This condition is most likely to develop secondary to congestive heart failure, following an increase in hydrostatic pressure within the lungs. More rarely, hydrothorax can develop in 10% of patients with ascites which is called hepatic hydrothorax ...
Yellow nail syndrome, also known as "primary lymphedema associated with yellow nails and pleural effusion", [1]: 849 is a very rare medical syndrome that includes pleural effusions, lymphedema (due to under development of the lymphatic vessels) and yellow dystrophic nails. [2] Approximately 40% will also have bronchiectasis.
A parapneumonic effusion is a type of pleural effusion (accumulation of fluid in the pleural cavity) that arises as a result of a pneumonia, lung abscess, or bronchiectasis. [1] There are three types of parapneumonic effusions: uncomplicated effusions, complicated effusions, and empyema. Uncomplicated effusions generally respond well to ...
Mesothelioma that affects the pleura can cause these signs and symptoms: [15] Chest wall pain; Pleural effusion, or fluid surrounding the lung; Shortness of breath – which could be due to a collapsed lung or the pleural effusion; Fatigue or anemia; Wheezing, hoarseness, or a cough; Blood in the sputum (fluid) coughed up