Abstract
Background: In women over the age of 50, a mature cystic teratoma is reportedly likely to change into a malignant form. A mature cystic teratoma that remained in a benign form in a very old woman is a rare event. We report a case of a benign cystic teratoma, which is the oldest in Japan. Case: An 85-year-old Japanese woman with a pelvic mass measuring 8.90×5.81 cm by ultrasonography was referred to our Department for detailed. Transvaginal ultrasonography, magnetic resonance imaging, and serum concentrations of tumor markers led to a diagnosis of a mature cystic teratoma. Histological findings postoperatively confirmed the presence of a mature cystic teratoma. Conclusions: This case report describes a mature cystic teratoma which is the second oldest case reported in the world. We reconfirmed that a mature cystic teratoma in elderly women is not frequent, but does occur.
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Received: November 1999 / Accepted: 10 January 2000
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Takahashi, K., Shinno, T., Watanabe, Y. et al. Benign teratoma in an 85-year-old woman. Arch Gynecol Obstet 263, 188–190 (2000). https://doi.org/10.1007/s004040050280
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DOI: https://doi.org/10.1007/s004040050280