An abnormal mass of tissue that forms when cells grow and divide more than they should or do not die when they should. Tumors may be benign (not cancer) or malignant (cancer).

Oct 11, 2021 · Explanations about what cancer is, how cancer cells differ from normal cells, and genetic changes that cause cancer to grow and spread.

Aug 1, 2022 · This page defines tumor grade, how it is determined and described, and its role in planning cancer treatment.

A cancer is always referred to by the stage it was given at diagnosis, even if it gets worse or spreads. New information about how a cancer has changed over time is added to the original …

A term for diseases in which abnormal cells divide without control and can invade nearby tissues. Cancer cells can also spread to other parts of the body through the blood and lymph systems.

Jan 17, 2025 · Metastatic cancer is cancer that spreads from its site of origin to another part of the body. Learn how cancer spreads, possible symptoms, common sites where cancer spreads, …

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 …

Inflammatory myofibroblastic tumor, or IMT, forms in tissues called mucosal surfaces and mesentery. Mucosal surfaces are found in your eyes, nose, mouth, digestive tract, lungs, and …

Hippocrates first described cancer as having a central body with the tendency to reach out and spread like "the arms of a crab." Besides the popular, generic term "cancer" used by most …

Those that cannot be controlled with treatment are often called end-stage cancer or terminal cancer. Advanced cancer may also be used to describe cancers that have spread to nearby …