The passing of a strong beam of light through a part of the body for medical inspection. A method of examination by the passage of light through tissues or a body cavity.
A common use of transillumination is in infancy. The infant’s skull should normally not transilluminate (let a beam of light pass through it). But in hydranencephaly, a condition in which the cerebral hemispheres are almost totally absent, the head appears normal, but when transilluminated, light shines completely through.
This is just one example of the use of transillumination, a simple, inexpensive, painless procedure.
- Transitional cell carcinoma
Cancer that develops in the lining of the renal pelvis, ureter, or bladder.
- Transjugular intrahepatic portosystemic shunt
A shunt that allows blood from the portal circulation (that supplies the liver) to flow into the systemic (general) circulation. Transjugular intrahepatic portosystemic shunt involves catheterization of a hepatic (liver) vein by the transjugular approach (through the jugular vein) followed by puncture of an intrahepatic portal vein and placement and expansion of a stent to […]
- Transjugular, intrahepatic, portosystemic shunt
A shunt (tube) placed between the portal vein which carries blood from the intestines to the liver and the hepatic vein which carries blood from the liver back to the heart. It is used primarily (but not exclusively) in patients with cirrhosis in which the scar tissue within the liver has blocked the flow of […]
The process by which the genetic code carried by messenger RNA (mRNA) directs the production of proteins from amino acids.
- Translocation 11 childhood leukemia
A new type of childhood leukemia in which a piece of chromosome 11 has been translocated (broken off and attached itself to another chromosome).Position 11q23 is the site of the mixed lineage leukemia gene – a gene so called because it has a gene expression profile different from that seen in other leukemias such as […]