| Squamous cell carcinoma arising from mature cystic teratoma of the ovary: A clinicopathologic analysis. |
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Min Kyoung Kim, Eun Ji Nam, Jae Wook Kim, Young Tae Kim, Jae Hoon Kim, Sang Wun Kim, Bo Sung Yoon, Hye Yeon Kim, Dong Wook Kwak, Sunghoon Kim |
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Department of Obstetrics and Gynecology, Yonsei University College of Medicine, Seoul, Korea. shkim70@yumc.yonsei.ac.kr |
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| Abstract |
OBJECTIVE
The aim of this study was to evaluate clinicopathologic characteristics of squamous cell carcinoma arising from ovarian mature cystic teratoma and to determine whether SCC Ag and CA 125 are useful serum markers for diagnosing this tumor. METHODS: From January 1990 to December 2005, 1266 patients diagnosed with ovarian mature cystic teratoma were reviewed. Of the 1266 patients, 8 patients which had squamous cell carcinoma arising from mature cystic teratoma were evaluated in this study. A retrospective analysis of clinicopathologic characteristics and disease-free survival rate was performed. RESULTS: The incidence of squamous cell carcinoma arising from ovarian mature cystic teratoma was 0.7% (8/1266). The mean age of the patients was 47.3 years (range, 32-72 years). Five patients (62.5%) had clinical FIGO stage I disease and three patients (37.5%) had stage III disease. The mean tumor diameter was 13.3 cm. The mean SCC Ag level was 0.3 ng/mL which was normal and the mean CA 125 was slightly increased to 68.5 U/mL. The mean disease free survival was 58.4 months and 2-year disease-free survival was 62.5% (5/8). Out of 8 patients, one patient died and one out of 7 patients who survived had recurrence. Age, clinical FIGO stage, grade, residual tumor, postoperative treatment were not significant prognostic factor for disease-free survival. CONCLUSION: The incidence of squamous cell carcinoma arising from ovarian mature cystic teratoma in our institute was lower and survival rate was relatively higher compared to previous studies. SCC Ag and CA 125 were not helpful tumor markers in diagnosing squamous cell carcinoma arising from ovarian mature cystic teratoma. Age, grade, residual tumor, postoperative treatment were not significant prognostic factor for disease-free survival. |
| Key Words:
Mature cystic teratoma, Transformation to squamous cell carcinoma, Ovary |
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