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The Korean Journal of Pathology 1985;19(2): 214-219.
Malignant Transformation in Cystic Teratoma of Ovary: 4 cases report.
Seong Sook Kim, Ae Lan Paik, Hye Je Cho, In Ki Paik, Ill Hyang Ko
Department of Pathology, Inje Medical College, Seoul Paik Hospital, Seoul, Korea.
Development of a malignant tumor within a mature cystic teratoma is a serious event, and occurs in about 1%~4% of cases. The malignant transformation occurs most frequently in the squamous epithelium with the formation of a squamous cell carcinoma. There are 10 cases reported in the literature, in Korea. We report 4 additional cases, which include 3 squamous cell carcinomas and 1 adenosquamous carcinomas, arising in cystic teratoma of the ovary.