Treatment of severe acute pancreatitis and its complications

Figure 4 Ultrasound appearance of infected pancreatic necrosis before and after the treatment of acute pancreatitis. A: Infected pancreatic necrosis (IPN) involved the entire pancreas in the beginning of the disease; B: Liquefied areas in the IPN marked by arrows; C: Small necroses and liquid collections around the pancreas 2 mo after the beginning of treatment marked by arrows; D: Normal appearance of the pancreas 6 mo after the beginning of treatment.