Severe thrombocytopenia may be corrected by platelet transfusion. Total parenteral nutrition intravenous feeding that provides patients with all essential nutrients when they're unable to feed themselves. Also called TPN, hyperalimentation or hyperal. TPN see total parenteral nutrition. Tumor uncontrolled growth of abnormal cells in an organ or tissue.
Tumor burden the size of the tumor or number of abnormal cells in the organ or tissue.
Go to top of page U Ultrasound a technique for taking a picture of internal organs or other structures using sound waves. Virus a tiny parasite-like agent that invades organisms, such a human cells, and alters their genetic machinery, turning them into factories for production of more of the virus. VOD see veno-occlusive disease. W WBC white blood cell count. Whole blood blood that has not been separated into its various components.