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The Korean Journal of Pathology 1991;25(5): 462-466.
Squamous Cell Carcinoma and Struma Ovarii Arising in Benign Cystic Teratoma.
Eun Sook Nam, Young Seek Kim, Yang Seok Chae, Kap No Lee, Seung Yong Paik
Department of Pathology, Korea University Guro Hospital, Seoul 152-050, Korea.
ABSTRACT
Malignant tumor is found in 1-2% of ovarian benign cystic teratomas. Among these malignant neoplasms, squamous cell carcinoma is by far the most common malignancy, whereas the incidence of struma ovarii is less than 5% in mature teratoma. As far as concerned the struma ovarii, a very small percentage is associated with carcinoid, mucinous or serous cystadenoma, or Brenner tumor. However, any reports of struma ovarii associated with squamous cell carcinoma in the same ovary could not be found in English literature. Recently we have experienced a case of squamous cell carcinoma and struma ovarii arising in an ovarian benign cystic teratoma in 72 year old female patient.
Key Words: Benign cystic teratoma; Squamous cell carcinoma; Struma ovarii; Ovary