wrjc1hod 发表于 2024-6-22 16:28:31

癌柸抗原是什么？癌胚抗原多少才算癌症？


    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">癌胚抗原其实属于一种糖蛋白，正<span style="color: black;">一般人</span>的<span style="color: black;">身体</span><span style="color: black;">亦</span>会存在癌胚抗原，癌胚抗原<span style="color: black;">一般</span><span style="color: black;">位置于</span>人体的粘膜细胞内。<span style="color: black;">倘若</span><span style="color: black;">有些</span><span style="color: black;">病人</span>患上了癌症，则<span style="color: black;">身体</span>的细胞就可能会<span style="color: black;">显现</span>癌变的现象，从而就会<span style="color: black;">引起</span><span style="color: black;">身体</span>的癌胚抗原数值<span style="color: black;">显现</span><span style="color: black;">提升</span>的现象，癌胚抗原就会与<span style="color: black;">病人</span><span style="color: black;">身体</span>正常的细胞连接在<span style="color: black;">一块</span>，将自己与正常细胞连接在<span style="color: black;">一块</span>。<span style="color: black;">因此</span>癌胚抗原的存在，有利于<span style="color: black;">身体</span>癌细胞的扩散以及转移。</p>
    <div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic3.zhimg.com/80/v2-1428cbebbc342f6cf3344a7c0fd7cffe_720w.webp" style="width: 50%; margin-bottom: 20px;"></div>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">正常<span style="color: black;">状况</span>下，CEA的数值<span style="color: black;">少于</span>5，从理论上讲，肿瘤标志物是肿瘤细胞产生的，只要肿瘤标志物高于正常值，就<span style="color: black;">能够</span>诊断癌症。<span style="color: black;">然则</span>，事实上并不是<span style="color: black;">这般</span>的，<span style="color: black;">咱们</span>的<span style="color: black;">非常多</span>良性<span style="color: black;">疾患</span><span style="color: black;">亦</span>有可能<span style="color: black;">引起</span>CEA<span style="color: black;">上升</span>，例如胃肠道的炎症，<span style="color: black;">长时间</span>抽烟，妊娠期等等，除了这些<span style="color: black;">状况</span>，肿瘤<span style="color: black;">亦</span><span style="color: black;">能够</span><span style="color: black;">引起</span>CEA<span style="color: black;">上升</span>，<span style="color: black;">重点</span>是腺癌，例如结直肠癌，胃癌，胆管癌，胰腺癌，肺癌，食管癌，乳腺癌，胆囊癌等等。</p>
    <div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic3.zhimg.com/80/v2-c84cffbdb5de087df29b19b800e8c4b6_720w.webp" style="width: 50%; margin-bottom: 20px;"></div>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><span style="color: black;">倘若</span>CEA只是轻度的<span style="color: black;">上升</span>，<span style="color: black;">常常</span>提示炎症<span style="color: black;">或</span>良性<span style="color: black;">疾患</span>，癌症的可能性并不大。<span style="color: black;">倘若</span>CEA<span style="color: black;">上升</span>较多，超过正常值的2倍，<span style="color: black;">亦</span><span style="color: black;">便是</span>超过10以上，<span style="color: black;">况且</span><span style="color: black;">连续</span><span style="color: black;">上升</span>，<span style="color: black;">特别有</span>可能是癌症，<span style="color: black;">必须</span>做一系列的<span style="color: black;">检测</span>，<span style="color: black;">知道</span>是哪个部位的癌症，例如做胃肠镜<span style="color: black;">检测</span>，胸部CT，腹部CT等等，大部分<span style="color: black;">病人</span>，经过系统的<span style="color: black;">检测</span>，都<span style="color: black;">能够</span><span style="color: black;">发掘</span>癌症，<span style="color: black;">亦</span>有一部分<span style="color: black;">病人</span>，做了一系列<span style="color: black;">检测</span>，并<span style="color: black;">无</span><span style="color: black;">发掘</span>癌症，这种<span style="color: black;">状况</span><span style="color: black;">亦</span>是存在的，有可能<span style="color: black;">无</span>得癌，<span style="color: black;">必须</span><span style="color: black;">定时</span>检测CEA水平。</p>
    <div style="color: black; text-align: left; margin-bottom: 10px;"><img src="https://pic1.zhimg.com/80/v2-d498334aa0cdb00b36ac18aeb66acb1c_720w.webp" style="width: 50%; margin-bottom: 20px;"></div>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">反过<span style="color: black;">来讲</span>，CEA<span style="color: black;">无</span><span style="color: black;">上升</span>，就<span style="color: black;">表率</span><span style="color: black;">无</span>得癌吗？很可惜，并<span style="color: black;">不可</span>够，其实，大部分的肿瘤<span style="color: black;">病人</span>，CEA并<span style="color: black;">无</span><span style="color: black;">上升</span>，<span style="color: black;">亦</span><span style="color: black;">便是</span>说，CEA正常，并<span style="color: black;">不可</span>排除肿瘤。<span style="color: black;">因此</span>，CEA并不太适合癌症筛查，假阳性和假阴性率都是比较高的，想要筛查肿瘤应该<span style="color: black;">选取</span>更加特异性的筛查手段，例如，肺癌应该<span style="color: black;">选取</span>胸部CT，胃癌<span style="color: black;">选取</span>胃镜，肠癌<span style="color: black;">选取</span>肠镜，乳腺癌<span style="color: black;">选取</span>乳腺彩超和钼靶<span style="color: black;">检测</span>，肝癌<span style="color: black;">选取</span>AFP和肝脏彩超<span style="color: black;">检测</span>。前列腺癌<span style="color: black;">选取</span>PSA和彩超<span style="color: black;">检测</span>。总而言之，CEA<span style="color: black;">上升</span>只能提示癌症，并<span style="color: black;">不可</span>确诊肿瘤，还<span style="color: black;">必须</span>结合其他的<span style="color: black;">检测</span>。</p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><a style="color: black;">体检前一天的<span style="color: black;">重视</span>事项</a></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><a style="color: black;">熬夜对临床<span style="color: black;">实验</span>体检有<span style="color: black;">那些</span>影响？</a></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;"><a style="color: black;">细胞治疗应用<span style="color: black;">行业</span>有<span style="color: black;">那些</span>？</a></p>
    <p style="font-size: 16px; color: black; line-height: 40px; text-align: left; margin-bottom: 15px;">关注募英雄<span style="color: black;">认识</span><span style="color: black;">更加多</span>临床<span style="color: black;">实验</span><span style="color: black;">关联</span>知识</p>




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7wu1wm0 发表于 5 天前

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