title: An extra-large ovarian mucinous cystadenoma in a premenarchal girl and a review of the literature.
abstract: OBJECTIVE
  Epithelial ovarian neoplasms are extremely uncommon in children. Ovarian mucinous cystadenoma is benign and an extremely rare presentation in the premenarchal period. We present a case of giant mucinous cystadenoma of the left ovary in a 13-year-old and a review of the supporting literature.
  
  
  METHODS
  The patient was admitted with a history of increasing abdominal distension and pain for approximately 3 months and a history of an ovarian mass for 3 years. An adnexal mass measuring 40 × 30 × 20 cm was detected by abdominal ultrasonography and computed tomography. The tumor markers CEA, CA 19-9, and CA-125 were elevated, although α-fetoprotein and human chorionic antigen levels were within the normal range. The patient underwent surgery. The smooth-surfaced mass filled the abdomen. A frozen section biopsy was performed, and the results indicated a benign mucinous cystadenoma. A unilateral oophorectomy with tumor removal was performed.
  
  
  CONCLUSIONS
  The ovarian mass was revealed by abdominal distension, and a diagnosis was established by frozen biopsy. Complete and careful surgical resection provides satisfactory results; however, careful follow-up is required.
authors.affiliation: Harran University, Faculty of Medicine, Department of Pediatric Surgery, Sanliurfa, Turkey. cevikmuazzez@gmail.com
authors.forename: Muazez
authors.initials: M
authors.lastname: Cevik
authors.forename: Muhammed Emin
authors.initials: ME
authors.lastname: Guldur
mesh_terms: D000293:Adolescent; D018291:Cystadenoma, Mucinous / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D005260:Female; D006801:Humans; D008572:Menarche; D010051:Ovarian Neoplasms / Q000175:diagnosis* / Q000473:pathology / Q000601:surgery; D010053:Ovary / Q000473:pathology* / Q000601:surgery