It Is Ultimately A Needle.

A transudate is a clear fluid that forms not because the pleural surfaces are diseased but because of an imbalance between the normal production and removal of the fluid. It is ultimately a needle biopsy of the pleura lining of the lung or an open surgical biopsy which confirms a mesothelioma diagnosis. Any excess fluid is absorbed by blood and lymph vessels maintaining a balance. The most common cause of transudative fluid is congestive heart failure. When the doctor listens to the patient�s chest with a stethoscope normal breath sounds are muted and tapping on the chest will reveal dull rather than hollow sounds. The right lung is affected of the time with involvement of both lungs being seen in approximately of patients at the time of diagnosis.