Comparison of "Roll-over' Technique With Standard Abdominal Paracentesis in Suspected Peritoneal Carcinomatosis

Inclusion Criteria: Patient with ascites where a diagnosis of peritoneal carcinomatosis is being considered on the basis of one or more of the following * Clinical Suspicion of peritoneal carcinomatosis on basis of a history of malignancy, painful ascites and/or loss of weight * Clinical Suspicion of peritoneal carcinomatosis on the basis of presence of ascites with lump or other stigmata of malignancy * Suspicion of peritoneal carcinomatosis on imaging suggestive of peritoneal carcinomatosis Exclusion Criteria: * Age \< 12 years * Refusal to participate or provide consent * Evidence of chronic liver disease-related ascites (evidence of cirrhosis on ultrasonography or evidence of portal hypertension eg varices on endoscopy) * Already diagnosed alternate cause of ascites like cirrhosis, pancreatitis, right heart failure - * Contraindications to paracentesis in the form of disseminated intravascular coagulation or local site infection.