What is a tumor simple definition?

What is a tumor simple definition?

A tumor is an abnormal growth of body tissue. Tumors can be cancerous (malignant) or noncancerous (benign).

What is in a tumor?

A tumor is defined as a swelling or morbid enlargement that results from an overabundance of cell growth and division; normally cells grow and divide to produce new cells in a controlled and orderly manner. Although often used as a synonym for neoplasm, the word tumor is not synonymous with cancer.

What is the medical term for tumor?

Tumor. A mass formed when normal cells begin to change and grow uncontrollably. A tumor can be benign (noncancerous) or malignant (cancerous, meaning it can spread to other parts of the body). Also called a nodule or mass.

What are the 2 types of 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 happens if a tumor is undergoing metastasis?

In metastasis, cancer cells break away from where they first formed (primary cancer), travel through the blood or lymph system, and form new tumors (metastatic tumors) in other parts of the body. The metastatic tumor is the same type of cancer as the primary tumor.

Why is a tumor harmful?

A malignant primary tumor is more dangerous because it can grow quickly. It may grow into or spread to other parts of the brain or to the spinal cord. Malignant tumors are also sometimes called brain cancer. (Metastatic brain tumors are always cancer.

How is metastasis detected?

Metastasis — which accounts for 90% of cancer-related deaths1, and occurs when cancer cells detach from their primary site and home in distant organs — can be detected through non-invasive clinical-imaging modalities such as magnetic resonance imaging (MRI), X-ray computed tomography (CT) and positron emission …