title: A case of hydrosalpinx associated with the menstrual cycle.
abstract: OBJECTIVE
  To describe a case report of hydrosalpinx that changed dramatically in size during the menstrual cycle.
  
  
  METHODS
  Case report.
  
  
  METHODS
  University teaching hospital reproductive endocrinology and infertility practice.
  
  
  METHODS
  A 32-year-old woman with a history of medical and surgical treatments of endometriosis who sought infertility treatment.
  
  
  METHODS
  Transvaginal ultrasonography performed sequentially during menstrual cycles.
  
  
  METHODS
  Size of hydrosalpinx-like image.
  
  
  RESULTS
  The size of the hydrosalpinx-like image in the left adnexal region varied; it peaked during the ovulatory period and then remarkably diminished in a cyclic manner. Laparoscopy revealed a dense adhesion between the left tubal fimbriated end and the posterior uterine wall, which led to terminal obstruction of the tube.
  
  
  CONCLUSIONS
  Change in the volume of the hydrosalpinx in this case was speculated to reflect the normal tubal fluid production regulated by ovarian hormones.
authors.affiliation: Department of Obstetrics and Gynecology, Faculty of Medicine, University of Tokyo, Tokyo, Japan. yutakaos-tky@umin.ac.jp
authors.forename: Yutaka
authors.initials: Y
authors.lastname: Osuga
authors.forename: Kaori
authors.initials: K
authors.lastname: Koga
authors.forename: Tetsuya
authors.initials: T
authors.lastname: Hirata
authors.forename: Hisahiko
authors.initials: H
authors.lastname: Hiroi
authors.forename: Yuji
authors.initials: Y
authors.lastname: Taketani
mesh_terms: D000290:Adnexa Uteri / Q000000981:diagnostic imaging / Q000378:metabolism* / Q000601:surgery; D000328:Adult; D001826:Body Fluids / Q000378:metabolism*; D004715:Endometriosis / Q000150:complications* / Q000000981:diagnostic imaging / Q000378:metabolism / Q000601:surgery; D005184:Fallopian Tube Diseases / Q000000981:diagnostic imaging / Q000209:etiology / Q000378:metabolism* / Q000601:surgery; D005260:Female; D013509:Gynecologic Surgical Procedures; D006801:Humans; D010535:Laparoscopy; D008597:Menstrual Cycle / Q000378:metabolism*; D014463:Ultrasonography