方法采用免疫组化之SP_TM法，对20例口腔粘膜白斑，20例口腔鳞状细胞癌和10例正常口腔粘膜进行染色。
Methods By immunohistochSP _TM method, staining 20 cases oral leukoplakia, 20 cases squamous cell carcinoma and 10 cases normal mucosa.
方法：通过分别对于35例口腔鳞状细胞癌表面区、中心区、深层浸润区进行WHO病理分级，观察、评估不同区域的病理学分级是否存在差异。
Methods: Surface, center deep infiltration part of 35 OSCC cases were graded respectively (WHO grading1971). To observe where there were differences of pathological grading between these parts.
方法：通过分别对于35例口腔鳞状细胞癌表面区、中心区、深层浸润区进行WHO病理分级，观察、评估不同区域的病理学分级是否存在差异。
Methods: Surface, center deep infiltration part of 35 OSCC cases were graded respectively (WHO grading1971). To observe where there were differences of pathological grading between these parts.
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