Cancer dictionary of words, acronyms, abbreviations, & medical terms.
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U& UA UB UC UG UL UM UN UP UR US UT UV
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umbilical cord blood transplantation
The injection of umbilical cord blood to restore an individual's own blood production system suppressed by anticancer drugs, radiation therapy, or both. It is being studied in the More…
uncontrolled study
A clinical study that lacks a comparison (i.e., a control) group
unconventional cancer treatments
Approaches that use substances or methods of treating cancer that have not been shown to be effective by accepted scientific methods, such as carefully designed clinical trials
undescended testicles
A condition in which one or both testicles fail to move from the abdomen, where they develop before birth, into the scrotum. Undescended testicles may increase the risk for development of More…
undifferentiated
A term used to describe cells or tissues that do not have specialized (mature) structures or functions. Undifferentiated cancer cells often grow and spread quickly
unilateral
Having to do with one side of the body
unilateral salpingo-oophorectomy
Surgery to remove the ovary and fallopian tube on one side of the body
unresectable
Unable to be removed with surgery
unresectable gallbladder cancer
Cancer that has spread to the tissues around the gallbladder (such as the liver, stomach, pancreas, intestine, or lymph nodes in the area) and cannot be surgically removed
unsealed internal radiation therapy
Radiation therapy given by injecting a radioactive substance into the bloodstream or a body cavity, or by swallowing it. This substance is not sealed in a container
upper GI series
A series of x-rays of the upper digestive (gastrointestinal, or GI) system that are taken after a person drinks a barium solution, which outlines the digestive organs on the x-rays
upregulation
Process that increases the responsiveness of a cell by increasing the number of receptors on the cell membrane
urachal carcinoma
Rare cancer that commonly arises in the dome of the urinary bladder at the vesicourachal junction
urachus
(YOU-rah-kus) A fibrous cord that connects the urinary bladder to the umbilicus (navel). The urachus is formed as the allantoic stalk during fetal development and lasts through life. Also More…
uracil
An anticancer drug that belongs to the family of drugs called alkylating agents
urea nitrogen
A chemical in the blood produced by the breakdown of protein. Urea nitrogen is removed from the blood by the kidneys. Blood urea nitrogen (BUN) tests are sometimes done to see how well the More…
uremic
Involving excess nitrogenous waste products in the urine, usually due to kidney insufficiency
ureter
(yoo-REE-ter) The tube that carries urine from the kidney to the bladder
ureteritis
Inflammation of the ureter
ureteronephrectomy
Surgery to remove a kidney and its ureter. Also called nephroureterectomy
RCA Rare Cancer Dictionary
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