目的：分析胃溃疡癌变的X线表现特征。
Objective: To analyse the X-ray features of canceration of gastric ulcer CGU.
目的：研究胃溃疡癌变的发病率、发病机理及临床特点。
Objective: the aim of our study was to explore the incidence, pathogenesis and clinical features of malignant change of gastric ulcer.
MDM2基因的变化及蛋白的高表达可能与放射性皮肤溃疡癌变及不愈合有关。
It's suggested that the changes of p53 and MDM2, genes and proteins, may be related to the cancer transformation and poor healing of radiation-induced skin ulcers.
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