What are malignant tumors?
tumors, also called neoplasms, are abnormal tissue mass created by uncontrolled cell division that does not serve physiological purpose. The tumor can be either benign or malignant. Benign tumors are independent, non -lethal and grow more slowly than malignant. Malignant tumors are cancer growth that spread rapidly and can metastasize or spread to other areas of the body. Cells break the tumor, enter the bloodstream or lymphatic system and spread to another area and infect other tissue. In this way, a tumor that starts in one part of the body, such as breasts or prostate, can spread to another type of tissue such as bones. Normal cells in many ways differ in malignant tumors. Normal cells have the same shape with a nucleus containing chromatin and a nucleus that contains RNA and DNA. Malignant tumors have irregular cells with large irregular nuclei and chromatin. In addition, malignant cells do not stick like normal cells and under the microscope with stains differently.
The TNM classification system designed by the international Union against cancer is trying to classify malignant tumors to the extent they have spread through the body. T represents the size of the tumor, n represents any lymph nodes that can be connected, and M is based on the range of metastases or how far cancer spread throughout the body. This method is used, among other things, for lung, colon cancer, stomach cancer.
brain and backbone tumors use the classification method ratified Thr World Health Organization, which is based on the assumption that different types of tumors from the malignant nervous system are the result of abnormal growth of specific cell types. In this system, the tumor is classified by the type of cell that resembles. Once the tumor is classified, it is given numeric sorting, which means the degree of malignancy. The more aggressive the tumor, the higher the assigned number.
symptoms differ depending on thosePU and the placement of matter and some malignant tumors have no symptoms until cancer has achieved the most aggressive stage. Symptoms of colon cancer include diarrhea, constipation, bleeding and anemia, while lung cancer is accompanied by cough, shortness of breath and chest pain. Fatigue, pain, fever, loss of appetite and weight loss are also symptoms of various malignant tumors. In addition to biopsy, other diagnostic tools include blood tests, scanning magnetic resonance imaging (MRI), X -ray, computed tomography (CT) Apositron emission tomography (PET).
Treatment of malignant tumors depends, among other things, on the type of cancer, tumor placement and degree of mastitis. Whenever possible, surgical removal is recommended to prevent further spread of the disease. If the tumor does not spread, further treatment may not be necessary. If the range is limited to several lymph nodes, they are also removed. Some types of cancer or those that spread to other areas of the body often requireradiation, chemotherapy or combination of both.