title: Ovarian sex cord tumor with annular tubules in a woman with premature ovarian failure.
abstract: OBJECTIVE
  To report a case of premature ovarian failure (POF) associated with an ovarian sex cord tumor with annular tubules.
  
  
  METHODS
  Case report.
  
  
  METHODS
  Reproductive endocrinology unit in a tertiary academic center.
  
  
  METHODS
  A 20-year-old woman with POF.
  
  
  METHODS
  Biopsy of the rudimentary ovary by laparoscopy.
  
  
  METHODS
  Protocol for POF investigation and histological study of the ovarian sample.
  
  
  RESULTS
  An ovarian sex cord tumor with annular tubules was detected in the rudimentary right ovary.
  
  
  CONCLUSIONS
  The rare ovarian sex cord tumor with annular tubules, which may be hormonally active, was detected in a case of POF.
authors.affiliation: Department of Obstetrics and Gynecology, Hospital Clínico Universitario, Valencia, Spain.
authors.forename: S
authors.initials: S
authors.lastname: García-Galiana
authors.forename: C
authors.initials: C
authors.lastname: Monteagudo
authors.forename: M
authors.initials: M
authors.lastname: Tortajada
authors.forename: A
authors.initials: A
authors.lastname: Llombart
authors.forename: A
authors.initials: A
authors.lastname: Cano
mesh_terms: D000328:Adult; D001706:Biopsy; D005260:Female; D006651:Histocytochemistry; D006801:Humans; D010051:Ovarian Neoplasms / Q000150:complications* / Q000473:pathology; D016649:Primary Ovarian Insufficiency / Q000150:complications* / Q000473:pathology; D018312:Sex Cord-Gonadal Stromal Tumors / Q000150:complications* / Q000473:pathology