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Glossary

Showing 961-970 out of 1156 Terms

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  • Radiologist

    (RAY-dee-AH-loh-jist)

    A doctor who has special training in creating and interpreting pictures of areas inside the body. The pictures are made with x-rays, sound waves, or other types of energy.

  • Radiosurgery

    (RAY-dee-oh-SER-juh-ree)

    A type of external radiation therapy that uses special equipment to position the patient and precisely give a single large dose of radiation to a tumor. It is used to treat brain tumors and other brain disorders that cannot be treated by regular surgery. It is also being studied in the treatment of other types of cancer. Also called radiation surgery, stereotactic radiosurgery, and stereotaxic radiosurgery.

  • Rectal

    (REK-tul)

    By or having to do with the rectum. The rectum is the last several inches of the large intestine closest to the anus.

  • Rectally

    (REK-tul-lee)

    By or having to do with the rectum. The rectum is the last several inches of the large intestine closest to the anus.

  • Rectum

    (REK-tum)

    The last several inches of the large intestine closest to the anus.

  • Recurrences

    (ree-KER-ents)

    Cancer that has recurred (come back), usually after a period of time during which the cancer could not be detected.

  • Recurrent

    (ree-KER-ent)

    Cancer that has recurred (come back), usually after a period of time during which the cancer could not be detected. The cancer may come back to the same place as the original (primary) tumor or to another place in the body. Also called recurrence.

  • Red blood cells

    A type of blood cell that is made in the bone marrow and found in the blood. Red blood cells contain a protein called hemoglobin, which carries oxygen from the lungs to all parts of the body. Checking the number of red blood cells in the blood is usually part of a complete blood cell (CBC) test. It may be used to look for conditions such as anemia, dehydration, malnutrition, and leukemia. Also called erythrocyte and RBC.

  • Refractory

    (reh-FRAK-tor-ee)

    In medicine, describes a disease or condition that does not respond to treatment.

  • Regimen

    REH-jih-men

    A treatment plan that specifies the dosage, the schedule, and the duration of treatment.