Primary retroperitoneal cystic tumors include all cystic tumors that arise in the retro and sub peritoneal space independent of the kidney, the excretory tract, the adrenal gland, large vessels and contiguous viscera. We propose a retrospective study of 7 cases of primary retroperitoneal cystic tumors, collected in the department of digestive cancer surgery and liver transplantation at the Ibn Rochd University Hospital in Casablanca over a period of 10 years (2009 to 2019). Our patients are

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... ded into 6 women and 1 man with an average age of 42 years. The diagnostic time varies from 3 months to 3 years with an average of 10 months. The revealing signs are mainly pain (7 cases or 100%) and abdominal mass (3 cases or 43%). The positive diagnosis is based on ultrasound (2 cases or 40%) but above all on computed tomography (7 cases or 100%) which specifies the retroperitoneal site as well as the relationship of the tumor to neighboring organs. Its confirmation can only be histological. Surgery with total resection is the treatment of choice.