TOPICS: Restricted lung expansion, dyspnea, orthopnea, breath sounds, fremitus, percussion, costophrenic angle, tracheal deviation, compressive atelectasis, infection, transudate, exudate, hydrostatic pressure, CHF, nephrotic syndrome, cirrhosis, exudate, cloudy, malignancy, Pneumonia, trauma, collagen vascular disease, thoracocentesis, lymphatic, milky appearing, triglycerides, thoracic duct