Clinicohistopathological Study on Squamous Cell Carcinoma of Alveolus and Gingiva.
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概要
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A clinicohistopathological study was conducted on 38 cases of squamous cell carcinoma of the gingiva, which were treated at the First Department of Oral and Maxillofacial Surgery, Nagasaki University School of Dentistry from 1984 to 1995. The clinical stages of these cases were defined as follows: 4 cases were classified as stage I, 9 cases as stage II, 5 cases as stage III, and 20 cases as stage IV. The five-year cumulative survival rates were 100%, 80%, 60%, and 58%.<BR>These cases were also classified for degree of histological malignancy according to Anneroth's classification. The material was analyzed by 6 parameters such as tumor cell population, degree of keratinization, nuclear polymorphism and number of mitoses, as well as tumor-host relationship, degree of pattern of invasion, stage of invasion and lymphoplasmocytic infiltration. Each parameter was classified into 4 grades accordind to the morphology. The materials were classified into three groups according to the total score: low malignancy group, moderate malignancy group and high malignancy group. Their five-year cumulative survival rates were 66.7%, 78.3%, and 35.7%. Furthermore, the materials were classified into three groups according to the score of 3 parameters of tumor cell population and the score of 3 parameters of tumor-host relationship: low malignancy group, moderate malignancy group and high malignancy group. Their cumulative survival rates by tumor cell population were 100%, 65.7%, and 40%, and those by tumor-host relationship were 40%, 76. 5%, and 50%.
- 特定非営利活動法人 日本口腔科学会の論文
特定非営利活動法人 日本口腔科学会 | 論文
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