Cancer and Oncology Terms

A type of radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into or near a tumor.

A type of internal radiation therapy in which radioactive material sealed in needles, seeds, wires, or catheters is placed directly into a tumor or body tissue.

A substance that has been studied in the treatment of some types of cancer.

A type of radiation therapy used to treat liver cancer that is advanced or has come back.

A tumor that occurs in the brain.

A benign (not cancer), wart-like growth in a milk duct of the breast.

A noninvasive condition in which abnormal cells are found in the lining of a breast duct.

An intraductal papilloma is a benign, wart like growth within a breast milk duct that can cause nipple discharge.

Within an area of cancer, for example, within a tumor in the skin.

A rare cancer of melanocytes (cells that produce the pigment melanin) found in the eye.

Radiation treatment aimed directly at a tumor during surgery.

Treatment in which anticancer drugs are put directly into the abdominal cavity through a thin tube.

Treatment in which anticancer drugs are injected into the fluid-filled space between the thin layers of tissue that cover the brain and spinal cord.

Intratumoral means located, occurring, or administered within a tumor.

Cancer that has spread from where it started in the breast into surrounding, healthy tissue.

Cancer that has spread beyond the layer of tissue in which it developed and is growing into surrounding, healthy tissues.

Cancer that has spread from the surface of the cervix to tissue deeper in the cervix or to other parts of the body.

A type of cancer that grows into the muscular wall of the uterus.

A type of tumor in which surface epithelial cells grow downward into the underlying supportive tissue.

A substance that is being studied as a treatment for cancer and for primary systemic amyloidosis (a disease in which proteins are deposited in specific organs).