title: Voluminous mucinous cystadenoma of the ovary in a 13-year-old girl.
abstract: BACKGROUND
  Mucinous cystadenoma of the ovary constitutes about 15% of ovarian tumors. It is more common in women between 20 and 40, but is rare in teenagers and exceptional in pre-menstrual girls. Malignant transformation is possible in 5-10% of cases. Spontaneous or iatrogenic breaks are more common. It makes the different diagnosis of pseudomixoma peritonei more difficult.
  
  
  METHODS
  A 13-year-old girl came to the National Cancer Institute "Regina Elena" of Rome, with increasing abdominal distension over 2 months. The abdominal mass was removed and a left salpingo-oophorectomy was performed. Histological examination of the mass revealed a 40-cm diameter mucinous cystadenoma of the ovary.
  
  
  CONCLUSIONS
  The rapid enlargement of the ovarian mass, the young age and the difficulty of certain pre-operative diagnosis, make this case interesting. Management of this pathology and fertility-conserving treatment need careful follow-up because of the possibility of recurrence in the remaining ovary.
authors.affiliation: Division of Oncology and Gynaecology, Department of Oncologic Surgery, National Cancer Institute, Regina Elena, Rome, Italy. e.vizza@ifo.it
authors.forename: Enrico
authors.initials: E
authors.lastname: Vizza
authors.forename: Gregorio Marco
authors.initials: GM
authors.lastname: Galati
authors.forename: Giacomo
authors.initials: G
authors.lastname: Corrado
authors.forename: Marco
authors.initials: M
authors.lastname: Atlante
authors.forename: Costanza
authors.initials: C
authors.lastname: Infante
authors.forename: Carlo
authors.initials: C
authors.lastname: Sbiroli
mesh_terms: D000293:Adolescent; D018291:Cystadenoma, Mucinous / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D003937:Diagnosis, Differential; D005187:Fallopian Tubes / Q000601:surgery; D005260:Female; D013509:Gynecologic Surgical Procedures; D006801:Humans; D010051:Ovarian Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010052:Ovariectomy; D011553:Pseudomyxoma Peritonei / Q000175:diagnosis