A large vein that empties into the heart. It carries blood from the legs and feet and from organs in the abdomen and pelvis. … [Read more...]
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implantable cardioverter-defibrillator
A small device used to correct a heartbeat that is abnormal (too fast, too slow, or irregular). The device is placed by surgery in the chest or abdomen. Wires … [Read more...]
Hypericum perforatum
An herbal product sold as an over-the-counter treatment for depression. It is being studied for its ability to lessen certain side effects of cancer treatment. … [Read more...]
hydroxymethylglutaryl-coenzyme A reductase inhibitor
A substance that blocks an enzyme needed by the body to make cholesterol and lowers the amount of cholesterol in the blood. Hydroxymethylglutaryl-coenzyme A … [Read more...]
hydroxydaunorubicin
A drug that is used to treat many types of cancer and is being studied in the treatment of other types of cancer. Hydroxydaunorubicin comes from the bacterium … [Read more...]
hydromorphone
A drug used to relieve pain. … [Read more...]
hydrocortisone
A drug used to relieve the symptoms of certain hormone shortages and to suppress an immune response. … [Read more...]
hydatidiform mole
A slow-growing tumor that develops from trophoblastic cells (cells that help an embryo attach to the uterus and help form the placenta) after fertilization of … [Read more...]
human epidermal growth factor receptor 2
A protein involved in normal cell growth. It is found on some types of cancer cells, including breast and ovarian. Cancer cells removed from the body may be … [Read more...]
human EGF receptor 2
A protein involved in normal cell growth. It is found on some types of cancer cells, including breast and ovarian. Cancer cells removed from the body may be … [Read more...]