title: Struma ovarii. A case report.
abstract: BACKGROUND
  Struma ovarii is the presence of thyroid tissue as a major cellular component in an ovarian teratoma.
  
  
  METHODS
  A 46-year-old old woman, with a palpable mass at the anatomical position of the right adnexa known for the preceding 3 years underwent a total abdominal hysterectomy and bilateral salpingo-oophorectomy. Histology reported struma ovarii.
  
  
  CONCLUSIONS
  Struma ovarii is a rare tumor of the ovaries and its clinical appearance may vary: it may be asymptomatic, mimic malignant ovarian tumor, or present with symptoms of hyperthyroidism and, in rare cases, it can even be a malignant tumor.
authors.affiliation: Department of Gynecologic Oncology, Theageneio Cancer Hospital, Thessaloniki, Greece.
authors.forename: P
authors.initials: P
authors.lastname: Tanimanidis
authors.affiliation: Department of Obstetrics and Gynecology, Hippokratio Hospital, Thessaloniki, Greece.
authors.forename: K
authors.initials: K
authors.lastname: Chatzistamatiou
authors.affiliation: Department of Histopathology, Theageneio Cancer Hospital, Thessaloniki, Greece.
authors.forename: A
authors.initials: A
authors.lastname: Nikolaidou
authors.affiliation: Department of Gynecologic Oncology, Theageneio Cancer Hospital, Thessaloniki, Greece.
authors.forename: K
authors.initials: K
authors.lastname: Kaplanis
keywords: Struma ovarii; hyperthyroidism; ovarian tumor