fluid

Cancer cells can inflame the lung lining (pleura) or abdominal lining (peritoneum). This can cause fluid to build up. The fluid might contain cancer cells. Fluid around the lungs is called a pleural effusion. It can make it difficult to breathe. Draining fluid from your chest is called thoracocentesis or pleural aspiration. Fluid in the tummy (abdomen) is called peritoneal ascites. It can make the abdomen feel swollen, tight and uncomfortable. Draining fluid from your abdomen is called an abdoparacentesis or peritoneal aspiration.  Why you might have it The doctors might drain fluid from around your lungs or abdomen to: see if the fluid contains