A cancer is a group of abnormal cells, known as a tumor, that grows uncontrollably. Cancerous tumors invade and destroy surrounding tissue. Not all tumors are cancerous. Benign tumors, which are not cancerous, do not invade and destroy tissue. However, a benign tumor may grow very large. Cancerous tumors may shed cancer cells that spread to other parts of the body. This is called a metastasis. Benign tumors do not spread in this way.
Cardiovascular diseases (CVD) remain the leading cause of death in the structure of total mortality. The percentage of premature death from cardiovascular diseases varies from 4% in high-income countries and 42% in low-income countries, leading to growing inequalities between countries and population groups. Since the extent of CVD continues to grow worldwide, there is an urgent need to increase awareness and to adopt a more intensive and targeted response at both international and national levels.