title: Cystic lymphangioma of the kidney: Diagnosis and management.
abstract: BACKGROUND
  Cystic lymphangioma is a rare benign vascular tumor that may arise in various sites, revealed at any age. Abdominal locations represent less than 10% of the cases preferentially involving the mesentery. We report a case of primary lymphangioma arising from the kidney.
  
  
  METHODS
  A 50-year-old woman was admitted for severe left lumbar pain. Abdominal ultrasonography and computed tomography revealed a 6×10 cm multiloculated cystic mass with hydronephrosis, extending along the left renal hilum. Surgical exploration revealed a retroperitoneal cystic tumor. Anatomopathologic examination concluded it to be a cystic lymphangioma.
  
  
  CONCLUSIONS
  The cystic lymphangioma is a benign malformative tumor of the lymphatic system. Surgery is the best curative treatment with complete excision, the prognosis is excellent.
  
  
  CONCLUSIONS
  Primary renal lymphangioma is exceedingly rare. Medical imaging has certain limits for the diagnosis which required histological confirmation. The treatment of choice is surgical.
authors.affiliation: Department of Urology, Habib Bourguiba, University Hospital Majida Boulila Road, Sfax 3029, Tunisia. Electronic address: chaabouni.ahmad@gmail.com.
authors.forename: Ahmed
authors.initials: A
authors.lastname: Chaabouni
authors.forename: Nouri
authors.initials: N
authors.lastname: Rebai
authors.forename: Mohamed
authors.initials: M
authors.lastname: Fourati
authors.forename: Sami
authors.initials: S
authors.lastname: Rekik
authors.forename: Kamel
authors.initials: K
authors.lastname: Chabchoub
authors.forename: Mourad Hadj
authors.initials: MH
authors.lastname: Slimen
authors.forename: Ali
authors.initials: A
authors.lastname: Bahloul
authors.forename: Mohamed Nabil
authors.initials: MN
authors.lastname: Mhiri