title: Two cases of clear cell ovarian cancer in young patients.
abstract: BACKGROUND
  Ovarian cancer is the most common cause of cancer death worldwide. Incidence of ovarian cancer is more common in postmenopausal women. Premenopausal onset is rare and the present study described two cases of ovarian clear cell tumors in young women.
  
  
  METHODS
  The patients presented with pelvic mass which was confirmed by sonography and laparotomy and final diagnosis was made according to histologic examination. Both patients showed a solid mass with cystic components in adnexal areas and explorative laparotomy demonstrated extension of tumors to abdomen in both patients. The level of CA 125 increased in both patients. For both tumors, immunohistochemical stainings were positive for CK7 and CD15, but CK20 was negative.
  
  
  CONCLUSIONS
  Although ovarian clear cell tumor is usually diagnosed in postmenopausal women but its diagnosis should be suspected in young women with pelvic mass.
authors.affiliation: Department of Pathology of Babol University of Medical Sciences, Babol, Iran.
authors.forename: Mohammad
authors.initials: M
authors.lastname: Ranaee
authors.affiliation: Department of Obstetrics and Gynecology Babol University of Medical Sciences, Babol, Iran.
authors.forename: Shahla
authors.initials: S
authors.lastname: Yazdani
authors.affiliation: Department of Surgery Babol University of Medical Sciences, Babol, Iran.
authors.forename: Seyyed Reza
authors.initials: SR
authors.lastname: Modarres
authors.affiliation: Department of Pathology of Babol University of Medical Sciences, Babol, Iran.
authors.forename: Mahdieh
authors.initials: M
authors.lastname: Rajabi-Moghaddam
keywords: Clear cell carcinoma; Ovarian neoplasms; Young adult