title: A 57-year-old Brazilian woman with a giant mucinous cystadenocarcinoma of the ovary: a case report.
abstract: BACKGROUND
  Giant cystadenocarcinomas of the ovary are rarely described conditions.
  
  
  METHODS
  The authors describe a 57-year-old Brazilian woman who presented with an increase in abdominal girth in February 2003. Imaging studies showed a giant abdominal pelvic mass with probable origin in the right ovary. Cancer antigen-125 was elevated, while carcinoembrionic antigen and alpha-fetoprotein were normal. Total abdominal hysterectomy, bilateral salpingoophorectomy and omentectomy were done. The mass weighed 40Kg, and the histopathology study revealed a mucinous cystadenocarcinoma. She underwent chemotherapy with paclitaxel and cisplatin with no side effects. Under follow-up for more than 10 years, she is asymptomatic and with normal imaging and laboratory parameters, including the cancer antigen-125 marker.
  
  
  CONCLUSIONS
  This huge tumor evolved for a long time unsuspected and without metastases in a patient from a developing region. The diagnostic and management challenges posed by this unexpected and unusual presentation of an ovarian cystadenocarcinoma are discussed.
authors.forename: Sergio Henrique Mattioda
authors.initials: SH
authors.lastname: de Lima
authors.affiliation: Internal Medicine Department of HFA, and Catholic University of Brasília (UCB), Brasília-DF, Brazil. vitorinomodesto@gmail.com.
authors.forename: Vitorino Modesto
authors.initials: VM
authors.lastname: Dos Santos
authors.forename: Andersen Charles
authors.initials: AC
authors.lastname: Darós
authors.forename: Victor Paranaíba
authors.initials: VP
authors.lastname: Campos
authors.forename: Fabiana Ruas Domingues
authors.initials: FR
authors.lastname: Modesto