title: Idiopathic benign retroperitoneal cyst: a case report.
abstract: BACKGROUND
  Retroperitoneal cysts are uncommon, with an estimated incidence of 1/5750 to 1/250,000.
  
  
  METHODS
  A male patient was admitted with an abdominal pain, jaundice and fever. Clinical examination and investigations confirmed an idiopathic benign retroperitoneal cyst. He underwent surgery and was discharged after making good recovery.
  
  
  CONCLUSIONS
  Retroperitoneal cysts are very rare, and most of the time they are discovered incidentally. Patients may be asymptomatic or present with abdominal pain, referred pain to the legs or weight loss. Imaging may help diagnose these lesions, but surgery is the keystone in confirming the diagnosis. This case is very rare and very educational as it highlights an unusual presentation of a benign retroperitoneal cyst. In our patient, the course of the disease was unique as the patient presented with jaundice.
authors.affiliation: Department of General Surgery, Tameside General Hospital, Manchester, UK. ahmedwahabf@gmail.com
authors.forename: Ahmed
authors.initials: A
authors.lastname: Alzaraa
authors.forename: Husam
authors.initials: H
authors.lastname: Mousa
authors.forename: Paul
authors.initials: P
authors.lastname: Dickens
authors.forename: Jonathan
authors.initials: J
authors.lastname: Allen
authors.forename: Abduljalil
authors.initials: A
authors.lastname: Benhamida