癌細胞擴散至距離原始腫瘤遙遠的器官及組織。此時癌細胞流竄於全身，必需借助循環全身的化學治療藥物治療。安寧照護將是治療選項之一。
原癌基因在环境或遗传因素作用下，改变自身结构，转变为癌基因，使正常细胞转化为肿瘤细胞。
All youth ages twelve and below needs to be accompanied by a dependable Grownup or lawful guardian throughout their check out. Some activities may well call for Grownup supervision.
筛查规划仅对某些类型而非所有类型的癌症有效，而且一般来说，筛查规划比早期诊断复杂得多并需要更大量的资源，包括需要特殊设备和专门人员。即使建立了筛查规划，早期诊断规划也依然必要，以便查明那些发生在不符合筛查的年龄或风险因素标准的人群中的癌症病例。
内分泌腺切除术：适用于依赖激素生长的癌症，如：乳腺癌可切除卵巢、脑垂体等，前列腺癌切除睾丸，现已少用。
允许其快速增长。基因突变可以命令细胞快速增长和分裂。这将产生许多具有相同突变的新细胞。
[105] Each and every of these alterations regulates gene expression with no altering the underlying DNA sequence. These adjustments may well remain through cell divisions, endure for multiple generations, and may be regarded as comparable to mutations.
Young ones can see Individuals cheeky pink pandas Engage in, or view Those people tall giraffes reach the leaves. There are playful primates, and sleepy hippos, you will discover Massive animals similar to the grand lion, towards the teeny ocelot.
原理：它可以通过激发、增强机体的免疫功能，达到控制、杀灭肿瘤的目的。
Site visitors to Woodland Park Zoo can explore an variety of immersive displays and participate in one of a kind animal encounters, keeper talks, and interactive instructional applications.
不斷增生的癌細胞撐破腫瘤，癌細胞因而擴散至腫瘤周遭的組織及鄰近的淋巴結甚至更遠處。此時癌細胞流竄於原始病灶附近，必需借助循環全身的化學治療藥物治療。
筛查规划根据年龄和风险因素来选择患者，以避免进行过多假阳性研究。筛查方法的例子包括：
Hello Medical doctor hopes to 癌症 be your most dependable ally for making additional knowledgeable choices also to Dwell much healthier and happier lives.
术前要综合评估恶性肿瘤侵及层次、范围以确定手术方式及切除范围，应尽可能争取将肿物完全切除，减少转移的可能，术后标本应送病理明确肿瘤类型、分期、有无转移等信息，以指导术后治疗。