title: Mucinous cystadenoma of the mesocolon, a rare entity frequently presenting with features of malignity: two case reports and review of the literature.
abstract: OBJECTIVE
  Mucinous cystadenomas are tumors arising mostly from the ovaries and pancreas. They can also arise from the kidneys, lungs, liver and appendix, but are rarely seen in the mesocolon. Recently, they have been included in an updated classification of mesenteric cysts and cystic tumors. The WHO classification (ICD 10) divides them into three subcategories according to their malignant behavior.
  
  
  METHODS
  This report of two cases of mucinous cystadenoma of the mesocolon discusses the diagnostic and therapeutic modalities as well as the pathophysiological pathway(s) of development of these neoplasms.
  
  
  CONCLUSIONS
  The diagnosis of mucinous cystadenomas of the mesocolon is challenging due to the absence of specific clinical, biological and radiological features, and is often made during or after laparotomy. Preoperative biopsy is not useful and may even lead to misdiagnosis or peritoneal spillage. Surgery is the only curative treatment, but the modalities of resection are still a subject of debate.
authors.affiliation: Department of General and Digestive surgery, University Pierre & Marie-Curie, Paris VI, Hôpital Saint-Antoine, 184, rue du Faubourg-St-Antoine, 75012 Paris, France.
authors.forename: François
authors.initials: F
authors.lastname: Cauchy
authors.forename: Jérémie H
authors.initials: JH
authors.lastname: Lefevre
authors.forename: Najat
authors.initials: N
authors.lastname: Mourra
authors.forename: Yann
authors.initials: Y
authors.lastname: Parc
authors.forename: Emmanuel
authors.initials: E
authors.lastname: Tiret
authors.forename: Pierre
authors.initials: P
authors.lastname: Balladur
mesh_terms: D002471:Cell Transformation, Neoplastic / Q000473:pathology; D018291:Cystadenoma, Mucinous / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery*; D003937:Diagnosis, Differential; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D033162:Incidental Findings; D008297:Male; D008646:Mesocolon / Q000473:pathology* / Q000601:surgery*; D008875:Middle Aged; D010534:Peritoneal Neoplasms / Q000473:pathology* / Q000503:physiopathology / Q000601:surgery*; D035583:Rare Diseases; D016896:Treatment Outcome