
1. Abstract
1.1. Introduction: Intrabdominal masses can be solid or cystic. Depending on their location, they can be classified as intrabdominal, retroperitoneal, pelvic or dependent of the abdominal wall. Imaging studies are crucial to characterize the lesions and their locations. Abdominal ultrasound allows the description of the lesion, making it possible to differentiate solid masses from cysts, however a CAT scan or an MRI (with contrast) is necessary to better describe them and obtain more information on the location, content and anatomical relationships. Many patients are scheduled for surgery with an erroneous diagnosis.