
Keywords: سونوگرافی سونوگرافی; CT; computed tomography; CEA; carcinoembryonic antigen; CA 19-9; carbohydrate antigen 19-9; PET; positron emission tomography; FDG; fluorodeoxyglucose; US; ultrasound sonography; MRI; magnetic resonance imaging; Hemolymphangioma; Retroperitoneal tumor;