Medical professionals primarily classify effusions based on the fluid's composition to determine the likely cause.
Occurs when fluid leaks into the pleural space due to pressure imbalances (increased hydrostatic or decreased oncotic pressure) without damaging the pleural layers. It is usually protein-poor and watery. pleural effusion pdf download
Congestive heart failure (most common), cirrhosis, and nephrotic syndrome. and nephrotic syndrome. Results from inflammation
Results from inflammation, infection, or malignancy that increases vascular permeability, allowing protein and cells to leak into the pleural space. It is protein-rich and often more difficult to treat. or malignancy that increases vascular permeability
Pneumonia, lung cancer, pulmonary embolism, and tuberculosis. 2. Common Symptoms