1. "Sinusoid sign " is another M-mode finding indicating presence of pleural effusion . 2. Pleural effusions may occur when fluid also accumulates in the pleural cavity.3. Pleural effusions may occur with cancer, sarcoid, connective tissue diseases and lymphangioleiomyomatosis.4. Simple pleural effusions occur in up to 40 % of bacterial pneumonias. 5. His name became associated with pleural effusion and with tabes dorsalis. 6. Pulmonary haemorrhage, pleural effusions , atelectasis, and intrapulmonary shunts also contribute to respiratory difficulty. 7. Pleural effusion with crystals in the urine have additionally been seen.8. Advanced cancers can also cause abdominal masses, lymph node masses, or pleural effusion . 9. The presence of a pleural effusion argues against pneumocystis pneumonia. 10. A collection of fluid in the pleural cavity is known as a pleural effusion .
