Marginal resection of the mandible for carcinoma of the floor of the mouth.

概要

論文の詳細を見る
This study was undertaken to determine the indication and value of marginal resection of the mandible as a method of treatment for squamous cell carcinoma of the floor of the mouth. Eighteen patients whose primary tumors were treated by utilizing marginal resection at the Department of Oral Surgery of Hokkaido University from 1977 to 1986, were studied clinically and histopathologically. Another ten patients who had undergone resection of the primary tumor by other surgical methods during the same period, were also studied histopathologically.<BR>Local recurrence was observed in one case and the 5 year survival rate was 71. 3%. The histopathological study revealed that the cortical bone was eroded or destroyed by tumor tissues in more than half of the cases where the primary tumor had been diagnosed to have gingival invasion, mandibular adhesion or mandibular invasion. Tumor invasion into the periodontal ligament and bone marrow was also found in some cases. However, bone erosion and tumor invasion were limited within a small area, and tumor tissues did not invade beyound the extent which was anticipated before the surgery. These results suggest that some of the squamous cell carcinoma of the floor of the mouth can be removed by marginal resection of the mandible, even if the tumor invades the gingiva, the periosteum and mandible. On the other hand, in cases where the primary tumor had been diagnosed as not having gingival invasion nor mandibular adhesion, varied amounts of fibrous tissues were observed between the tumor tissues and the mandible. This suggests that squamous cell carcinoma of the floor of the mouth can be removed without resecting the mandible, if normal tissue is interposed the tumor and the mandible clinically. However, in some cases, particularly where the lesion was accompanied with infection and/or pain, it might be difficult to ascertain if the tumor had invaded the mandible or not. Therefore, it is recommended that squamous cell carcinoma of the floor of the mouth be removed by utilizing marginal resection of the mandible, if mandibular invasion is doubtful.
社団法人日本口腔外科学会の論文

Marginal resection of the mandible for carcinoma of the floor of the mouth.

スポンサーリンク

概要

著者

関連論文

スポンサーリンク