癌症是一组可影响身体任何部位的多种疾病的通称。使用的其它术语为恶性肿瘤和赘生物。癌症的一个决定性特征是异常细胞快速生成，这些细胞超越其通常边界生长并可侵袭身体的临近部位和扩散到其它器官。后者被称为转移。广泛转移是癌症死亡的主要原因。
需要注意的是，癌症并不是完全无法治愈的疾病！！！尽早进行治疗，治愈癌症的可能性也就越大。
Veterinary oncology, concentrating generally on cats and canines, is often a expanding specialty in wealthy international locations and the foremost varieties of human procedure including operation and radiotherapy may very well be supplied.
癌症易复发、转移，早期患者复发率、转移率偏低，有些可治愈，中晚期患者复发率、转移率、致死率高，通常预后不良。
Indications of cancer metastasis rely on the location of your tumor. When cancer begins, it generates no signs. Symptoms and symptoms surface since the mass grows or ulcerates.
乙肝病毒、丙肝病毒和某些类型的人乳头瘤病毒可分别增加罹患肝癌和宫颈癌的危险。艾滋病毒感染会使患宫颈癌的风险增加六倍，并还会大幅增加患其他癌症，如卡波西肉瘤的风险。
梗阻：与瘤体增大堵塞正常腔道有关，如胃肠癌梗阻引发呕吐、排便困难，胰头癌胆汁排出受限引发黄疸等。
Established in 1899, there is over ninety acres to invest Your loved ones day out in, 癌症 exactly where Children can occur head to head with their favored animals, and find out all about conservation as well!
放射治疗即常说的放疗，根据其治疗方式及适应证可分为根治性放疗、姑息性 放疗和联合治疗，具体内容可参考百度百科及百度药典，在此不过多介绍。但需要 注意，放疗并不一定能完全治疗癌症，且在治疗过程中会出现诸多不良反应，如 乏力、恶心、厌食、皮肤痒肿、口咽疼痛、局部毛发脱落、神经损伤、心肺功能 异常（如干咳、气喘等）、胃肠功能紊乱（如恶心、呕吐、体重下降等）等。
Woodland Park Zoo acknowledges that these are generally the lands with the Tribal signatories in the Treaty of Point Elliott. We admit their stewardship of this location carries on to this day and that it is our obligation to join them to restore the relationship Using the dwelling world all around us.
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。
The incidence of lung most cancers is very correlated with using tobacco. Publicity to individual substances happen to be linked to particular forms of cancer. These substances are referred to as carcinogens.
有些肿瘤的治疗和预后与病理分级或浸润深度有关，因此也可以采用其他的一些分期方法。
结构重建与功能康复术：在保证治疗效果的基础上进行，以提高患者生存质量，如乳腺癌术后结构重建、喉癌发声重建术等。