tumorról

Tumor refers to an abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. These growths can be benign or malignant. Benign tumors are not cancerous and do not spread to other parts of the body. They can still cause problems if they grow large enough to press on organs or tissues. Malignant tumors, also known as cancer, are cancerous. They have the ability to invade nearby tissues and spread to distant parts of the body through the bloodstream or lymphatic system, a process called metastasis.

The causes of tumor formation are diverse and can include genetic mutations, exposure to carcinogens like certain chemicals or radiation, chronic inflammation, and certain viruses. The symptoms of a tumor depend heavily on its location, size, and whether it is benign or malignant. Some tumors may cause no symptoms at all, while others can lead to pain, fatigue, unexplained weight loss, or changes in bodily functions. Diagnosis typically involves medical imaging such as X-rays, CT scans, or MRIs, along with biopsies where a sample of the tissue is examined under a microscope. Treatment options vary widely and can include surgery to remove the tumor, radiation therapy, chemotherapy, immunotherapy, or targeted drug therapy, often used in combination.