Division of Gastroenterology, Department of Internal Medicine, Federal University of Santa Catarina, Florianópolis, SC, Brazil
2.Department of Pathology, Federal University of Santa Catarina, Florianópolis, SC, Brazil
3.Department of Surgery, Federal University of Santa Catarina, Florianópolis, SC, Brazil
4.Division of Radiology, Department of Internal Medicine, Federal University of Santa Catarina, Florianopolis, SC, Brazil