Malignant tumors: Definition and Example

Malignant tumors denote cancerous tumors, they have the potential to get worse, and can result in death. Different from benign tumors, malignant ones can grow really fast as they are so aggressive to seek out new area. in addition they spread very quickly. The abnormal cells which form a malignant tumors can multiply at rapid rate. Experts say that there is no obvious line between cancerous, non-cancerous, and precancerous tumors, especially if the tumor is in the middle of spectrum. Some benign tumors become premalignant eventually, and then malignant.

The Metastasis of Malignant Tumors

Malignant tumors invade surrounding cells, and then the cells near them, and spread. Some cells can break off from the tumor and will spread to various parts of the body through the bloodstream or lymphatic system, and will establish themselves in any area in the body, and will later form new tumors, named secondary ones. Metastasis is the process in which cells of cancer spread from their initial growth site to distant sites in the human body. For instance, patience may have started off with melanoma which spread in the brain.

The cancer cells which metastasize are the same as the original cancers. If a lung cancer metastasizes to the liver, those cells which grow in the liver become lung cancer cells which acquire the ability to attach the other organs. There are various types of tumors, which are actually made up of specific types of cells of cancer. Hereunder are some of the types of cancer cells which can lead to the growth of malignant cancers.

  1. These particular tumors are derived from tissues or skin. Carcinomas can be, for instance, of prostate, stomach, lung, pancreas, colon, liver, or breast. Many of the most common tumors are of this type, particularly among the older patients.
  2. These are known for the growth starting off in connective tissue,such as bones, cartilage, nerves, and fat. They originate in mesenchymal cells outside bone marrow. The majority of sarcoma tumors are known to be malignant. They are named after the cell, structure, or tissue they grow from, for instance, liposarcoma,fibrosarcoma, chondrosarcoma, angiosarcoma, and osteosarcoma.
  3. Leukemia or Lymphoma. Cancers arise from the blood which forms cells originating in the narrow and commonly mature in the lymph or blood nodes. Leukemia accounts for about 30 % of childhood cancers. This is thought to be the cancer where tumors are not formed.
  4. Germ cell tumor. These are particular tumors which arise from a germ cell or pluripotent cells, which are basically cells then can turn into any sort of cell. Germ cell tumors generally present in ovary or testicle. The majority of testicular tumors are germ cell tumors. Germ cell tumors, less commonly, may also occur in the brain, chest, or abdomen.
  5. Tumors derived from embryonic tissue, which is also known as precursor cells. These types of tumors are common in children. Blastoma is generally seen as the root word used in longer ones which describe tumors, for instance medulloblastoma and glioblastoma.

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