title: Magnetic resonance imaging findings of mucinous borderline ovarian tumors: comparison of intestinal and endocervical subtypes.
abstract: OBJECTIVE
  The purpose of this study is to compare the MRI features of intestinal and endocervical mucinous borderline ovarian tumors (MBOT).
  
  
  METHODS
  Fifty seven and 17 patients with histologically proven intestinal (n = 62) and endocervical (n = 22) MBOT, respectively, underwent preoperative MRI which were reviewed by two radiologists blinded to histology. An array of MRI features and clinical factors (age, cancer antigen 125 [CA-125]) were compared between intestinal and endocervical subtypes using the t test and Chi-square test. Univariate and multivariate logistic regression analyses were performed to evaluate for significant predictors of subtype.
  
  
  RESULTS
  There was no significant difference in patient age of intestinal and endocervical MBOT (P = 0.423). CA-125 levels were higher in endocervical MBOT (P = 0.022). Regarding MR features, intestinal MBOT was larger, had more septations, more frequently demonstrated honeycomb loculi, and signal intensity discrepancy while endocervical MBOT was more frequently bilateral with papillary projections (P < 0.05). At multivariate analysis, higher CA-125 (odds ratio [OR] 1.015, P = 0.034) and the presence of papillary projections (OR 11.441, P = 0.024) were the only independent predictive factors of endocervical MBOT.
  
  
  CONCLUSIONS
  Intestinal and endocervical subtypes of MBOT demonstrated significantly different features on MRI. The presence of papillary projection was the only independent MRI feature predictive of endocervical MBOT.
authors.affiliation: Department of Radiology, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul, 110-744, Korea.
authors.forename: Sungmin
authors.initials: S
authors.lastname: Woo
authors.forename: Seung Hyup
authors.initials: SH
authors.lastname: Kim
authors.forename: Min A
authors.initials: MA
authors.lastname: Kim
authors.forename: In-Ae
authors.initials: IA
authors.lastname: Park
authors.forename: Myoung Seok
authors.initials: MS
authors.lastname: Lee
authors.forename: Sang Youn
authors.initials: SY
authors.lastname: Kim
authors.forename: Jeong Yeon
authors.initials: JY
authors.lastname: Cho
mesh_terms: D002288:Adenocarcinoma, Mucinous / Q000473:pathology*; D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D005260:Female; D006801:Humans; D008279:Magnetic Resonance Imaging / Q000379:methods*; D008875:Middle Aged; D010051:Ovarian Neoplasms / Q000473:pathology*; D012189:Retrospective Studies; D016037:Single-Blind Method; D055815:Young Adult