Medical terms beginning with H

A substance that causes a chemical change that stops tumor cells from dividing.

A substance being studied in the treatment of several types of cancer.

An amount of radiation that is greater than that given in typical radiation therapy.

Cancer that arises in the head or neck region (in the nasal cavity, sinuses, lips, mouth, salivary glands, throat, or larynx [voice box]).

A form of complementary and alternative medicine based on the belief that vital energy flows through the human body.

A licensed person or organization that provides healthcare services.

A type of advance directive that gives a person (such as a relative, lawyer, or friend) the authority to make healthcare decisions for another person.

In a clinical study, a person who does not have the disorder or disease being studied.

A rare cancer that develops in tissues of the heart.

One of a group of proteins that help protect cells from stresses such as heat, cold, and low amounts of oxygen or glucose (sugar).

An herb used in traditional Chinese medicine to treat certain medical problems.

A detailed picture of areas inside the body.

A type of therapy in which radiation is aimed at a tumor from many different directions.

A type of bacterium that causes inflammation and ulcers in the stomach or small intestine.

A type of immune cell that stimulates killer T cells, macrophages, and B cells to make immune responses.

A protein found in the outer coat of paramyxoviruses.

A type of cancer involving blood vessels and soft tissue.

A type of cancer that begins in the cells that line blood vessels.

Originating in the blood or spread through the bloodstream.

A cancer of the blood or bone marrow, such as leukemia or lymphoma.