舌癌4例に対するRa針組織内照射後の再発と潰瘍, 壊死の処置に関する検討

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Four patients suffering tongue cancers were discussed, concerning their clinical course after irradiation, using radium needling. Local control for primaly tumors remained during the time from 8 months to 9 years. Recurrent tumors appeared in the opposite side of the tongue at the 4 th year and in a buccal mucosa through mandibular ramus at 8 th months, which were in distant portions from the primary tumors. Therapeutic neck dissection for the cervical lymph metastases was carried out on two patients without prophylactic ones.<BR>It was very difficult to differentiate the recurrent tumor from the radiation necrosis or the ulcer, because of the symptoms associated with induration and pain. Resection and reconstruction for 2 recurrent tumors and 2 radiation ulcers had successful results. However, the repeated biopsies for radiation necrosis which may develop into ulceration, should not be taken.