What is a tumor
A tumor - a swelling, prominence or growth on any part of the body, especially a growth produced by deposition of new tissue. [ Source: http://www.chacha.com/question/what-is-a-tumor ]
More Answers to "What is a tumor"
- The term "Tumor" derives from latin, and dates back to the time of Hypocrates, Father of the Hypocratic Oath, and who most historians credit with the formation of the Medical Theory. Unfortunately, Hypocrates didn't have the same ...
- A tumor is an abnormal and functionless mass of tissue within a living body that is not inflammatory and arises from pre-existent tissue.
- In order to understand tumor grade, it is helpful to know how tumors form. The body is made up of many types of cells. Normally, cells grow and divide to produce new cells in a controlled and orderly manner. Sometimes, however, new cells co...
Related Questions Answered on Y!Answers
- What is the difference between a benign and a malignant tumor?
- Q: 1. Benign tumors do not metastasize; malignant tumors do. 2. Benign tumors are composed of cancer cells; malignant tumors are not. 3. Benign tumors are classified as sarcomas; malignant tumors are leukemias. 4. Benign tumors cannot kill you; malignant tumors can. 5. Benign tumors are not the result of a failure of a cell-cycle control system; malignant tumors are.
- A: 1- u'r point is right.2- Benign tumors are not composed of cancer cells, but malignant tumors are composed of cancer cells.3- no no, only malignant tumors are furthur classified into carcinomas ( derived from epithelial cells) , sarcomas ( derived from connective tissue) , lymphomas n leukemias ( derived from blood n lymphatic tissue).4- u'r point is right.5- Both these tumors are result of failure of cell-cycle cotrol.
- Q: for it to be a tumor does it have to grow in size ?????
- A: tumor means a swelling and if you mean cancer then it can be present without the swelling increasing in size ,
- What is the difference between a benign tumor and a cancerous tumor?
- Q: What is the difference between a benign tumor and a cancerous tumor? And please don't say that a cancerous tumor has cancerous cells, why are those cells considered cancerous?
- A: The big difference is whether the cancer will metastasise or not.Metastasis is the spreading of the cancer from its original location to other locations in the body - causing "secondary tumours" elsewhere.A benign tumour can still be life-threatening, depending on its location and size. For example, a non-metastatic tumour in the brain is still going to interfere with brain function, squeezing other bits of the brain, using-up blood and oxygen, etc.The whole benign/malignant thing is why some tumours are considered more "serious" than others. Breast cancer, for example, should on the face of it not be considered too serious: the breast is not a vital organ, so even if there is a large and unsightly tumour there, it shouldn't be life-threatening. But breast cancers are very prone to metastasis - particularly to the lungs. since the lungs *are* a vital organ, cancers there will likely kill you, so breast cancer is taken very seriously.Edit:*all* tumours are cancerous. The distinction you are asking about is between "benign" and "malignant" cancers.
Prev Question: How do I prevent swine flu
People also view