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The Korean Journal of Pathology 2010;44(3): 322-325.
doi: https://doi.org/10.4132/KoreanJPathol.2010.44.3.322
Malignant Fibrous Histiocytoma Arising in a Mature Cystic Teratoma of the Ovary: A Case Report.
Soyoung Im, Sun Mi Lee, Ji Han Jung, Hyun Joo Choi, Jinyoung Yoo, Seok Jin Kang, Kyo Young Lee
Department of Pathology, The Catholic University of Korea College of Medicine, Seoul, Korea. jinyyoo@catholic.ac.kr
ABSTRACT
A 50-year-old female patient presented with anorexia and weight loss. Pelvic computed tomography revealed a 12.5 x 7.3 cm heterogeneous mass in the left ovary. About 30% of the tumor was occupied by a mature cystic teratoma. The remaining solid portion was composed of fibrous and histiocytic elements, arranged in storiform patterns admixed with bizarre giant cells. The mitotic index was 8 per 10 high power fields, including atypical mitoses. The only immunopositivity was for vimentin. The tumor was diagnosed as a malignant fibrous histiocytoma arising in a mature cystic teratoma. To the best of our knowledge, this is only the third such case in the English language literature.
Key Words: Histiocytoma, malignant fibrous; Teratoma; Ovary