The term you're probably looking for is 'ascites', you can google it for more information and it's relation to Hep C. In addition, the problem with his blood may be a reduced 'platelet' count, which could also be related to the Hep-C. Both situations are not uncommon with Hepc in it's advanced stages, to include cirrhosis.
Leg swelling and fluid accumulation in the stomach are associated with cirrhosis. Fluid in the stomach is called ascites. Since there has been a diagnosis of hepc, more than likely it is cirrhosis but only after biopsy will they know what stage the liver disease has progressed to. Depending on the stage of liver disease, they will determine if treatment is an option or not. Janis7hepc.com is a very good website to learn about all aspects of hepc. Good Luck
Trinity