Dictionary

polyploid Having three or more full sets of chromosomes. For example, a polyploid brain tumor cell might have 69 or 92 chromosomes.

polyps-and-spots syndrome See Peutz-Jeghers syndrome.

polypsis of the colon See familial adenomatous polyposis.

polysomnography Electronic monitoring of a sleeping patient to look for abnormalities in sleep patterns and/or brain waves. Polysomnography correlates electroencephalogram readings with observation of the patient. Usually, respiration, oxygen saturation, body position, and other factors are also measured during polysomnography. See also sleep apnea; sleep apnea, central; sleep apnea, obstructive; sleep disorders.

polysomy Y syndrome See XYY syndrome.

Pompe disease An inherited deficiency of the enzyme alpha-glucosidase which helps the body break down glycogen, a complex carbohydrate that is converted to glucose for energy. Without the enzyme, glycogen builds up in the heart and other muscles, causing extensive damage. There are several different forms of Pompe disease which vary in severity. Pompe disease…

polio vaccine, inactivated A vaccine that is made from a suspension of poliovirus types that are inactivated (killed) with formalin. Abbreviated IPV. IPV is given by injection.

polio vaccine, killed See polio vaccine, inactivated.

polio vaccine, live See polio vaccine, oral.

polio vaccine, oral A vaccine that contains live attenuated (weakened) poliovirus. Abbreviated OPV.

polio vaccine, Sabin See polio vaccine, oral.

polio vaccine, Salk See polio vaccine, inactivated.