When cancer is talked about

When cancer is talked about, what is meant is a malignant tumor. A malignant tumor is one with the tendency to grow and invade surrounding tissues. Benign tumors, while still cancerous pose a much lesser threat. They are encapsulated and are much less likely to spread. Often, they can be removed surgically and no additional treatment is required. Metastatic tumors are malignancies which have already spread. Metastatic cancers are generally the most dangerous. Read more