title: Primary retroperitoneal hydatid disease mimicking retroperitoneal malignant tumor.
abstract: BACKGROUND
  Hydatid disease (HD) is endemic in many parts of the world. It may develop in almost any part of the body; the liver is the organ most frequently involved. HD in an unusual location may make differential diagnosis difficult. Isolated retroperitoneal HD is extremely rare.
  
  
  METHODS
  We report herein a case of retroperitoneal HD mimicking retroperitoneal malignant tumor.
  
  
  CONCLUSIONS
  HD should be considered in the differential diagnosis of all cystic masses in all anatomic locations, especially in regions of the world where the disease is endemic.
authors.affiliation: Department of General Surgery, Istanbul Medical Faculty, Istanbul University, Capa, Istanbul, Turkey.
authors.forename: Candaş
authors.initials: C
authors.lastname: Erçetin
authors.forename: Mustafa
authors.initials: M
authors.lastname: Tükenmez
authors.forename: Cem
authors.initials: C
authors.lastname: Dural
authors.forename: Arzu
authors.initials: A
authors.lastname: Poyanli
authors.forename: Artür
authors.initials: A
authors.lastname: Salmaslioğlu
authors.forename: Bilge
authors.initials: B
authors.lastname: Bilgiç
authors.forename: Yeşim
authors.initials: Y
authors.lastname: Erbil
mesh_terms: D000328:Adult; D000818:Animals; D003937:Diagnosis, Differential; D004443:Echinococcosis / Q000000981:diagnostic imaging* / Q000601:surgery; D005260:Female; D006801:Humans; D007813:Laparotomy; D012186:Retroperitoneal Neoplasms / Q000000981:diagnostic imaging*; D012187:Retroperitoneal Space / Q000469:parasitology; D014421:Turkey; D014463:Ultrasonography