Brachytherapy for cervical cancer in septate uterus: Dose-volume differences with tandem implant placement in right vs. left uterine canal: A case report.

Brachytherapy is a standard treatment modality for locally advanced cervical cancer. In patients with uterine anomalies, the radiation dose to the target volume and the organs at risk can vary depending on the positioning of the brachytherapy tandem implant. However, there have been few reports concerning the use of brachytherapy in patients with uterine anomalies. The present study reports the case of a 55-year-old woman with locally advanced squamous cell carcinoma of the cervix and complete septate uterus. The patient was treated with external-beam radiation therapy, cisplatin chemotherapy, and brachytherapy. Computed tomography-based planning was performed for image-guided brachytherapy with the tandem implant alternately in the right and left uterine canals and using the right and left point A. A comparison of the resulting dose-volume histograms revealed wide variations in the projected dose to the clinical target volume and organs at risk. Tandem implant positioning for brachytherapy was chosen to optimize the dose-volume distribution. At the point of writing, the patient has not experienced local recurrence.