THORAX ABDOMEN AND PELVIS

Detailed explanation-1: -Pleural effusion resulting from a pulmonary embolus usually occupies less than one-third of the hemithorax. Dyspnea is frequently out of proportion to the size of the pleural effusion. Pleural fluid caused by pulmonary emboli is usually exudative but is occasionally transudative .

Detailed explanation-2: -A pleural effusion is when your lungs are releasing (secreting) too much fluid and not reabsorbing enough. Excess fluid can compress the lungs, causing shortness of breath. There are two types of pleural effusions: transudative and exudative.

Detailed explanation-3: -Heart failure is the most common cause. Exudative effusion is caused by blocked blood vessels or lymph vessels, inflammation, infection, lung injury, or tumors.

Detailed explanation-4: -Key Points. Transudative effusions are caused by some combination of increased hydrostatic pressure and decreased plasma oncotic pressure. Exudative effusions result from increased capillary permeability, leading to leakage of protein, cells, and other serum constituents.