Extended-spectrum β-lactamase (ESBL)Beta-lactamases are enzymes that destroy certain antibiotics. ESBLs are bacteria that have acquired these enzymes and have become resistant to certain…
extensive stage SCLCStands for small cell lung cancer. SCLC is usually staged as either "limited" or "extensive.
external radiation therapy(...RAY-dee-AY-shun THAYR-uh-pee) A type of radiation therapy that uses a machine to aim high-energy rays at the cancer from outside of the body.
External ReviewA review of a plan's decision to deny coverage for or payment of a service by an independent third-party not related to the plan.
external-beam radiation therapy(...RAY-dee-AY-shun THAYR-uh-pee) A type of radiation therapy that uses a machine to aim high-energy rays at the cancer from outside of the body.
extracorporeal photopheresis(EK-struh-kore-PORE-ee-ul FOH-toh-fuh-REE-siss) A procedure in which blood is removed from the body and treated with ultraviolet light and drugs that…
extracranial(EK-struh-KRAY-nee-ul) Outside of the cranium (bones that surround the brain).
extracranial germ cell tumor(EK-struh-KRAY-nee-ul jurm sel TOO-mer) A rare cancer that forms in germ cells in the testicle or ovary, or in germ cells that have traveled to areas of…
extract(EK-strakt) In medicine, a preparation of a substance obtained from plants, animals, or bacteria and used as a drug or in drugs.
extragonadal germ cell tumor(EK-struh-go-NA-dul jurm sel TOO-mer) A rare cancer that develops in germ cells that are found in areas of the body other than the ovary or testicle (such…
extrahepatic(EK-struh-heh-PA-tik) Located or occurring outside the liver.
extrahepatic bile duct(EK-struh-heh-PA-tik BILE dukt) The part of the common hepatic bile duct (tube that collects bile from the liver) that is outside the liver.
extrahepatic bile duct cancer(EK-struh-heh-PA-tik BILE dukt KAN-ser) A rare cancer that forms in the part of the bile duct that is outside the liver.
extranodal(EK-stuh-NOH-dul) Refers to an area or organ outside of the lymph nodes.
extraocular(EK-struh-AH-kyoo-ler) Located outside the eye.
extraosseous(EK-struh-AH-see-us) Located outside of the bone.
extrapleural pneumonectomy(EK-struh-PLOOR-ul NOO-moh-NEK-toh-mee) Surgery to remove a diseased lung, part of the pericardium (membrane covering the heart), part of the diaphragm…
extravasation(ek-STRA-vuh-SAY-shun) The leakage of blood, lymph, or other fluid, such as an anticancer drug, from a blood vessel or tube into the tissue around it.
eye cancer(I KAN-ser) Cancer that forms in tissues of and around the eye. Some of the cancers that may affect the eye include melanoma (a rare cancer that begins in…