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Glossary

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  • Toxins

    A poison made by certain bacteria, plants, or animals, including insects.

  • Tracer

    TRAY-ser

    A substance (such as a radioisotope) used in imaging procedures.

  • Trachea

    (TRAY-kee-uh)

    The airway that leads from the larynx (voice box) to the bronchi (large airways that lead to the lungs). Also called windpipe.

  • Tracheostomy

    (TRAY-kee-OS-toh-mee)

    Surgery to create an opening (stoma) into the windpipe. The opening itself may also be called a tracheostomy.

  • Transfusion reaction

    An allergic response to blood products. You may experience hives, chills or headaches.

  • Transplantation

    (tranz-plan-TAY-shun)

    A surgical procedure in which tissue or an organ is transferred from one area of a person’s body to another area, or from one person (the donor) to another person (the recipient).

  • Transsphenoidal surgery

    (TRANS-sfee-NOY-dul SER-juh-ree)

    A type of surgery in which instruments are inserted through the nose and sphenoid sinus (a hollow space in a bone in the nose) to remove tumors that are in or near the pituitary gland. The pituitary gland is a pea-sized organ that lies at the base of the brain above the back of the nose.

  • Treatments

    The action or manner of caring for a patient medically or surgically.

  • Triglycerides

    Triglycerides are a type of fat. They are the most common type of fat in your body. They come from foods, especially butter, oils, and other fats you eat. Triglycerides also come from extra calories. These are the calories that you eat, but your body does not need right away. Your body changes these extra calories into triglycerides, and stores them in fat cells. When your body needs energy, it releases the triglycerides. Having a high level of triglycerides can raise your risk of heart diseases, such as coronary artery disease.

  • Trisomy 18

    (TRY-soh-mee …)

    A genetic disorder caused by having an extra chromosome 18 in some or all of the body’s cells. Trisomy 18 is marked by a low birth weight and certain abnormal features. These include a small, abnormally shaped head; a small jaw and mouth; clenched fists with overlapping fingers; and heart, lung, kidney, intestine, and stomach defects. Many babies with trisomy 18 die before birth or within the first month of life, but some children live for several years. Having trisomy 18 increases the risk of certain types of cancer, such as hepatoblastoma (a type of liver cancer) and Wilms tumor (a type of kidney cancer). Also called Edwards syndrome.