作者: F. Carneiro , L. David , C. Sunkel , C. Lopes , M. Sobrinho-Simoes
DOI: 10.1016/S0344-0338(11)81203-3
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摘要: Summary In an attempt to clarify the relationship between ras oncogene expression and clinico-pathological features of malignant premalignant lesions stomach we undertook immunohistochemical study gene p21 product in a series eighty gastric carcinomas their respective adjacent mucosas. two cases mRNA Ha-ras was also studied by situ hybridization. The majority as well non-neoplastic mucosas expressed product. There significant morphologic pattern tumours. An enhanced found several conditions regarded precursor intestinal and!or diffuse types carcinoma (dysplasia, foveolar hyperplasia even neck zone normal-appearing glands, namely mucosa carcinomas). Ras actually more prominent most these than carcinomas. No invasiveness wall, nodal metastases venous invasion.