A case of multiple pelvic insufficiency fractures is presented. The case is a 74 year-old woman who was treated with 54 Gy of irradiation following radical hysterectomy for cervical cancer. Twenty years later, multiple pelvic fractures were detected in the irradiated field after conventional radiography of the pelvis. Although a recurrence was suspected, CT scans showed multiple fractures with no mass in the irradiation field, suggesting insufficiency fractures following radiotherapy. In conclusion, the differential diagnosis of insufficiency fracture should be included for patients with fractures following radiotherapy. A review of the literature of patients with pelvic insufficiency fracture following radiotherapy is also presented.
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