An increase in Fusobacterium is associated with the severity of oral mucositis after radiotherapy.

Radiotherapy is a common treatment for head and neck cancer but often causes oral mucositis, which reduces quality of life. Recent studies suggest that radiotherapy affects the oral microbiota, but whether it contributes to the severity of mucositis has been unclear. This study investigated the association between radiotherapy-induced changes in the oral microbiota and the severity of mucositis using 16 S rRNA gene sequencing.

Thoracic Re-irradiation With Definitive External Beam Radiation Therapy Using Intensity Modulated Radiation Therapy: A Case Report.

Thoracic re-irradiation has a high risk of severe adverse events, and re-irradiation with curative intent has rarely been performed. However, in recent years, with the introduction of intensity-modulated radiation therapy (IMRT) and stereotactic body radiation therapy, it has become possible to deliver high doses to the target lesions while minimizing the doses to surrounding tissues. The patient in this case had a history of definitive radiation therapy for esophageal cancer.

Radiation Therapy for Breast Cancer With Oligometastatic Cervical Lymph Nodes: A Case Report.

Stage IV breast cancer is difficult to cure and is mainly treated with systemic therapy. However, when distant metastasis is oligometastatic, proactive treatment including local therapies for the primary lesion and distant metastases has been reported to improve prognosis. We encountered a patient who had left breast cancer with ipsilateral cervical lymph node metastases.