What are cancerous tissues?
These cells may form tumors, which are lumps of tissue. Tumors can be cancerous or not cancerous (benign). Cancerous tumors spread into, or invade, nearby tissues and can travel to distant places in the body to form new tumors (a process called metastasis). Cancerous tumors may also be called malignant tumors.
What is cancer def for kids?
Cancer is a disease that happens when bad cells stop the good cells from doing their job. These bad cells can grow into a lump and can spread to other parts of the body. Cancer is the name for over 200 diseases in which abnormal cells grow and rapidly divide. These cells usually develop into a lump called a tumour.
What is a cancer cell simple definition?
Cancer cells are cells that divide continually, forming solid tumors or flooding the blood with abnormal cells. Cell division is a normal process used by the body for growth and repair.
Which term means cancerous?
A tumor can be benign (noncancerous) or malignant (cancerous, meaning it can spread to other parts of the body).
How are cancers named?
Cancer is named after the part of the body where it originated. When cancer spreads, it keeps this same name. For example, if kidney cancer spreads to the lungs, it is still kidney cancer, not lung cancer. Lung cancer would be an example of a secondary tumor.
How do you get cancer?
Cancer develops when the body’s normal control mechanism stops working. Old cells do not die and instead grow out of control, forming new, abnormal cells. These extra cells may form a mass of tissue, called a tumor. Some cancers, such as leukemia, do not form tumors.
What is cancer named after?
Origin of the word cancer In Greek, these words refer to a crab, most likely applied to the disease because the finger-like spreading projections from a cancer called to mind the shape of a crab. The Roman physician, Celsus (25 BC – 50 AD), later translated the Greek term into cancer, the Latin word for crab.
What are cancerous cells called?
These cells may form a mass called a tumor. A tumor can be cancerous or benign. A cancerous tumor is malignant, meaning it can grow and spread to other parts of the body. A benign tumor means the tumor can grow but will not spread. Some types of cancer do not form a tumor.
What makes a cell cancerous?
Cancer cells have gene mutations that turn the cell from a normal cell into a cancer cell. These gene mutations may be inherited, develop over time as we get older and genes wear out, or develop if we are around something that damages our genes, like cigarette smoke, alcohol or ultraviolet (UV) radiation from the sun.
Which cyst is cancerous?
These are cysts that harbor cancer or have the potential to become cancer. They are characterized by cells that secrete mucinous material into the cyst. These cysts can be classified into two categories: mucinous cystic neoplasms and intraductal papillary mucinous neoplasms.
What is the Definition malignant?
Listen to pronunciation. (muh-LIG-nunt) A term used to describe cancer. Malignant cells grow in an uncontrolled way and can invade nearby tissues and spread to other parts of the body through the blood and lymph system.
What is abnormal tissue growth?
A tumor is an abnormal growth of body tissue. Tumors can be cancerous (malignant) or noncancerous (benign).