Q1.what is tumor ?
Q2.what is benign tumors ?
Q3.malignant tumors ?
Q4.what is metastasis ?
Answers
A tumor is an abnormal mass of tissue that may be benign, premalignant, or cancerous. Find out more about the types of tumor and the outlook for people .
Answer:
1)An abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. Tumors may be benign (not cancer) or malignant (cancer). Benign tumors may grow large but do not spread into, or invade, nearby tissues or other parts of the body.
2)A growth that is not cancer. It does not invade nearby tissue or spread to other parts of the body.
3)Malignant tumors are cancerous and can invade other parts of the body. Some cancer cells can also migrate through the bloodstream or lymphatic system to distant areas of the body. This process is called metastasis. Cancers that have metastasized are considered more advanced than those that have not.
4)The spread of cancer cells from the place where they first formed to another part of the body. In metastasis, cancer cells break away from the original (primary) tumor, travel through the blood or lymph system, and form a new tumor in other organs or tissues of the body.