Metastasis Vs Malignant

Metastasis refers to the process by which cancer cells spread from the original (primary) site of the tumor to other parts of the body, forming new (secondary) tumors. This occurs when cancer cells break away from the primary tumor, enter the bloodstream or lymphatic system, and travel to distant organs or tissues. Metastasis is a hallmark of malignant tumors and significantly complicates treatment, as it often indicates a more advanced stage of cancer, making it harder to control and increasing the risk of mortality. The ability of cancer cells to metastasize underscores the aggressive nature of certain cancers and is a major focus of research in oncology.

Malignant describes a type of tumor or growth that is cancerous and has the potential to invade surrounding tissues and spread to other parts of the body. Malignant tumors are characterized by uncontrolled cell division, which leads to the formation of mass that can disrupt normal bodily functions. Unlike benign tumors, which are usually localized and do not spread, malignant tumors can metastasize, making them more dangerous. The term 'malignant' is often used to describe not only the tumor itself but also its aggressive nature and the likelihood of causing significant harm to the host organism.