A Case of Pathologic Fracture of the Proximal Femur Resulting from Metastatic Bone Tumor of Ovarian Immature Teratoma

Composing of less than 1% of all ovarian cancers, immature teratoma is a malignancy that mainly affects the young. In this report, we present the first case of pathologic fracture of the proximal femur resulting from metastatic bone tumor of ovarian immature teratoma. A 33-year-old Korean female was diagnosed as immature teratoma of stage Ia and grade 3. Eleven months following initial surgery, she had developed right thigh pain and palpable mass, which was confirmed metastasis of immature teratoma. She had her right leg broken during concurrent chemoradiation. She took mass excision, closed reduction with internal fixation and allo-bone graft followed by 6 cycles of chemotherapy and 10 times of radiotherapy. Now she is on regular follow-up and remained disease-free for 14 months.