title: Primary retroperitoneal mucinous cystadenoma with borderline malignancy in a male patient: a case report.
abstract: BACKGROUND
  Primary retroperitoneal mucinous cystadenoma is a rare tumor prevailing specifically in female gender. Its histogenesis is still unclear and its diagnosis is mainly based on morphological characteristics.
  
  
  METHODS
  the subject is a 44 years old man presenting an abdominal pain on the right side, with a palpable mass which appeared four months ago. Abdominal ultrasound (echography) revealed a retroperitoneal cystic process, which was successfully resected through laparotomy. Histopathological examination concluded to a mucinous cystadenoma with borderline malignancy foci. After a year of follow-up, no relapse was noticed in this patient.
  
  
  CONCLUSIONS
  Retroperitoneal mucinous cystadenoma is a rare tumor that should be considered in front of a retroperitoneal cystic process. Several hypotheses may explain the histogenesis of this pathological process. The interest in publishing this case report on primary retroperitoneal mucinous cystadenoma in a male patient lies in the rarity of occurrence of this syndrom in males as compared to females.
authors.affiliation: Pathology Departement. Ibn Sina Hopital. Mohamed V University, Rabat, Morocco.
authors.forename: Aicha
authors.initials: A
authors.lastname: Benkirane
authors.forename: Asmaa
authors.initials: A
authors.lastname: Mikou
authors.forename: Ahmed
authors.initials: A
authors.lastname: Jahid
authors.forename: Fouad
authors.initials: F
authors.lastname: Zouaidia
authors.forename: Laila
authors.initials: L
authors.lastname: Laraqui
authors.forename: Zakia
authors.initials: Z
authors.lastname: Bernoussi
authors.forename: Najat
authors.initials: N
authors.lastname: Mahassini