Áttételétele
Áttételétele is a Hungarian term that translates to "metastasis" in English. It refers to the process by which cancer cells spread from the primary site where they originated to other parts of the body. This spread can occur through the bloodstream, lymphatic system, or by direct extension into surrounding tissues. When cancer metastasizes, it forms secondary tumors in new locations. These secondary tumors are composed of the same type of cells as the primary tumor. For example, breast cancer that has spread to the lungs is still considered breast cancer, but with lung metastases. Metastasis is a complex biological process involving several stages, including invasion of surrounding tissues, intravasation into blood or lymphatic vessels, survival in circulation, extravasation into a new tissue, and finally, colonization and growth of new tumors. The presence of metastasis is a significant factor in determining the stage and prognosis of cancer. Treatments for metastatic cancer often differ from those for localized disease and may involve systemic therapies like chemotherapy, targeted therapy, immunotherapy, or palliative care to manage symptoms. Understanding áttételétele is crucial in cancer diagnosis, treatment planning, and research aimed at preventing or controlling cancer spread.