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Table 1 Differential diagnoses of retroperitoneal cysts.

From: Idiopathic benign retroperitoneal cyst: a case report

Female Male
Lymphangioma Lymphangioma
Cystic teratoma Cystic teratoma
Cystic haematoma Cystic haematoma
Cystic mesothelioma Cystic mesothelioma
Bronchogenic cyst Bronchogenic cyst
Epidermoid cyst Epidermoid cyst
Tailgut cyst Tailgut cyst
Mesenteric cyst Mesenteric cyst
Pseudocyst (non-pancreatic) Pseudocyst (non-pancreatic)
Pseudomyxoma peritonei Pseudomyxoma peritonei
Urinoma Urinoma
Lymphocele Lymphocele
Mullerian cyst  
Vulval cyst  
Parovaian cyst  
Vaginal cyst  
Paraurethral cyst  
Mucinous cystadenoma