Laparoscopy is a less invasive diagnostic technique than laparotomy that enables doctors to examine the peritoneal area. Biopsy may be performed on abnormal tissue or fluid. It is a recommended procedure for the cases of peritoneal effusion. It is performed in hospital under general anesthesia. A laparoscope, a narrow tube with a video camera and a tiny light on the end, is introduced in one of the small incisions made on the abdomen.