A review of squamous cell carcinoma arising in mature cystic teratoma of the ovary

N Abhilasha, UD Bafna, VR Pallavi, PS Rathod, S Krishnappa

Indian Journal of Cancer 2016 53(4):612-614

INTRODUCTION: Germ cell tumors account for 20-25% of ovarian neoplasms. Mature cystic teratoma (MCT) is the most common ovarian germ cell tumor. Malignancy in MCT is seen in 1-2% of the cases. Squamous cell carcinoma (SCC) accounts for 80% of the cases and carries a poor prognosis. AIM: To study the clinicopathological factors, management protocols and its outcome. MATERIALS AND METHODS: Case records reviewed from August 2006 to August 2011 at our institute identified 10 women with SCC in ovarian MCT. Staging was done according to FIGO 2009 guidelines. Primary surgery followed by adjuvant treatment with platinum based chemotherapy was given. RESULTS: Median age was 53.5 years. Six out of 10 patients were postmenopausal and aged above 50 years. Abdominal pain and abdominal mass were the most common presenting symptoms. According to FIGO: Two in stage 1, five in stage 2, two in stage 3 and one in stage 4. Among six optimally cytoreduced patients, five (83%) had no evidence of disease with a median follow up of 10 months. Whereas all four (100%) suboptimally cytoreduced patients had progressive disease within 3 to 4 months of primary surgery despite chemotherapy. CONCLUSION: Squamous cell carcinoma in MCT of ovary is a rarity. It carries a poor prognosis, especially in advanced stages and suboptimally cytoreduced patients. Platinum with or without taxane based chemotherapy may be useful as adjuvant treatment. However, further studies and standardization of treatment protocols are required for any recommendations.

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