Not known Details About 癌症
理論上，若是以手術完全移除腫瘤細胞，癌症是可以被治癒的。但並非總是如此簡單，外科手術通常無法切除已經轉移到其他部位的癌細胞。使用外科手術治療癌症的例子包括以乳房切除术治療乳癌或是進行前列腺切除術（英语：prostatectomy）治療前列腺癌。手術的目的在於移除腫瘤細胞或是整個器官，雖然將主要的腫瘤經外科手術切除，但仍有些潛伏在腫瘤所生長的器官週遭的單一腫瘤細胞是無法被察覺的。隨著時間過去，又會重新生長成一個新的腫瘤，稱為癌症復發。為此，手術切除下的腫瘤需要經病理學家的檢視，以確定切下的腫瘤週遭都是正常組織，減少腫瘤切除不完全的機會。And eventually, a review Just after their excursion, guests convey to us about their continue to be. We check for naughty words and phrases and verify the authenticity of all guest reviews right before including them to our website.
Metastasis is common during the late levels of cancer and it could occur by using the blood or perhaps the lymphatic method or both. The everyday measures in metastasis are local invasion, intravasation in the blood or lymph, circulation throughout the physique, extravasation into the new tissue, proliferation and angiogenesis.
People with most cancers have a heightened chance of blood clots within their veins which can be lifetime-threatening.[210] The usage of blood thinners for example heparin reduce the risk of blood clots but haven't been demonstrated to boost survival in individuals with cancer.[210] Those who just take blood thinners also have an elevated chance of bleeding.[210]
[188] The performance of chemotherapy is usually limited by its toxicity to other tissues in your body. Even when chemotherapy won't give a long-lasting heal, it may be valuable to reduce signs and symptoms including pain or to lessen the measurement of the inoperable tumor inside the hope that surgical procedure will come to be achievable Down the road.[citation needed]
如前所述，癌症源于正常细胞转变为肿瘤细胞的多阶段过程，通常从癌前病变发展 到恶性肿瘤。这些变化是一个人的遗传因素与三种外部因素相互作用的结果，外部 因素包括：
惡性腫瘤的命名通常使用其發生器官的拉丁文或希臘文作為字首，上述類別則作為字根來命名。對於常見的癌症，有時會使用英文的器官名來代替希臘或拉丁文名。例如，最普遍的乳癌類型即名為ductal carcinoma from the breast或者是mammary ductal carcinoma。而在中文领域，则分为两种情况。如果该恶性肿瘤是上皮组织来源的，则在上皮名称后面加一“癌”字。如果是间叶组织来源的，则被称为肉瘤。例如，生長在肝臟的惡性腫瘤命名即為肝臟上皮細胞腫瘤（英语：hepatocellular carcinoma），或简称为更常见的“肝癌”；發生在脂肪細胞則稱作脂肪肉瘤。而骨肉瘤则是间叶组织来源的。如果一恶性肿瘤既有癌的成分，又有肉瘤成分，则被称为癌肉瘤。
多數癌症是自發性的（英语：sporadic），但是有些癌症還是與遺傳有關，通常遺傳到缺陷的腫瘤抑制基因時會有較顯著的影響和症狀。舉例而言：
Within the seventies, a comparatively common option most cancers therapy during the US was a specialized method of talk therapy, depending on the concept most cancers was attributable to a bad attitude.[244] 癌症 Individuals with a "most cancers character"—depressed, repressed, self-loathing and frightened to specific their emotions—have been thought to own manifested most cancers via subconscious need. Some psychotherapists claimed that treatment method to alter the affected person's outlook on lifetime would treatment the most cancers.[244] Amongst other results, this belief allowed society responsible the victim for getting triggered the cancer (by "wanting" it) or obtaining prevented its get rid of (by not turning into a sufficiently delighted, fearless and loving man or woman).
確診為癌症後就要進一步做癌症屬於哪一期之分期檢查，觀察是否有轉移，並定期追蹤以免癌症復發，以便醫師擬定治療方向。（延伸閱讀：癌症診斷的目的與方法）
二级预防是指癌症一旦发生，如何在早期阶段发现并予以及时治疗。包括：①对癌症危险信号（如持续性消化不良、绝经后阴道流血、大小便习惯改变、久治不愈的溃疡等）的认识和重视；②对高发区和高危人群定期检查；③发现癌前病变并及时治疗；④加强对易感人群的监测；⑤肿瘤自检（对身体暴露部位定期进行检查）。
Treatment method is usually the same as for non-Expecting Girls. Even so, radiation and radioactive medications are Typically avoided during pregnancy, particularly when the fetal dose may possibly exceed 100 cGy. Sometimes, some or all therapies are postponed till just after start When the cancer is diagnosed late in the pregnancy.
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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。