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如果人体组织中的某些病理变化具有易于癌变的可能,这些病变就叫做癌前病变。及时诊断和治疗癌前病变,对于预防恶性肿瘤的发生有重要意义。常见的癌前病变有: 1.粘膜白斑:好发部位为口腔粘膜、食管粘膜以及女性外阴、阴道和子宫颈等处,局部呈白色略突出的斑块,并可出现异物感、灼痛、奇痒等,如表面粗糙或有溃疡则说明有进行性发展趋势,应及早手术切除。
If some pathological changes in human tissue with the possibility of cancer easily, these lesions are called precancerous lesions. Timely diagnosis and treatment of precancerous lesions, for the prevention of the occurrence of malignant tumors is of great significance. Common precancerous lesions are: 1. Leukoplakia: a good site for oral mucosa, esophageal mucosa and the female genitals, vagina and cervix, etc., the local white slightly prominent plaque, and there may be foreign body sensation, burning, odd Itch, etc., such as the surface roughness or ulcer shows a trend of progressive development, surgical resection should be as soon as possible.