title: A Squamous Cell Carcinoma and a Malignant Fibrous Histiocytoma Developing in a Patient with a Mature Cystic Teratoma.
abstract: We present a very rare case of malignant transformation of a benign mature cystic teratoma. The pathology report revealed malignant transformation of both the epithelial and sarcomatous elements of a benign dermoid cyst. To the best of our knowledge, this appears to be the third case of a malignant fibrous histiocytoma and a squamous cell carcinoma developing from a mature cystic teratoma. Malignant transformation of a dermoid cyst is usually diagnosed postmenopausally, but our patient was premenopausal. The etiology and prognosis of malignant transformation of this benign condition remain unknown.
authors.affiliation: Saglik Bilimleri University, Gazi Yasargil Research and Training Hospital, Department of Gynecology and Obstetrics, Diyarbakir, Turkey.
authors.forename: Ali Emre
authors.initials: AE
authors.lastname: Tahaoglu
authors.affiliation: Saglik Bilimleri University, Gazi Yasargil Research and Training Hospital, Department of Gynecology and Obstetrics, Diyarbakir, Turkey.
authors.forename: Serhat
authors.initials: S
authors.lastname: Ege
authors.affiliation: Saglik Bilimleri University, Gazi Yasargil Research and Training Hospital, Department of Gynecology and Obstetrics, Diyarbakir, Turkey.
authors.forename: Mehmet Sait
authors.initials: MS
authors.lastname: Bakir
authors.affiliation: Saglik Bilimleri University, Gazi Yasargil Research and Training Hospital, Department of Pathology, Diyarbakir, Turkey.
authors.forename: Gülbin
authors.initials: G
authors.lastname: Saruhan
authors.affiliation: Saglik Bilimleri University, Gazi Yasargil Research and Training Hospital, Department of Gynecology and Obstetrics, Diyarbakir, Turkey.
authors.forename: Serif
authors.initials: S
authors.lastname: Aksin
authors.affiliation: Dicle University, Department of Gynecology and Obstetrics, Dicle, Turkey.
authors.forename: Talip
authors.initials: T
authors.lastname: Gul
keywords: Cystic teratoma; Fibrous histiocytoma; Squamous cell carcinoma