A plasma protein consisting of 127 amino acids that binds retinol and thyroxine. The gene TTR that encodes transthyretin is in chromosome region 18q11.2-q12.1. Many distinct forms of amyloidosis have been related to different point mutations in TTR. Transthyretin is also called prealbumin (because it migrates faster than albumin in an acidic starch gel).
A fluid that passes through a membrane, which filters out all the cells and much of the protein, yielding a watery solution. A transudate is a filtrate of blood. It is due to increased pressure in the veins and capillaries that forces fluid through the vessel walls or to a low level of protein in […]
- Transurethral resection
Surgery to remove tissue using a special instrument inserted through the urethra. The procedure may be performed, for example, to remove an enlarged prostate that is obstructing the flow of urine. Abbreviated TUR.
- Transvaginal ultrasound
The creation of a picture called a sonogram by sending sound waves out through a probe inserted into the vagina. The waves bounce off the ovaries and other anatomical structures, and a computer uses the echoes to create a visual image. Abbreviated TVS.
In anatomy, a horizontal plane passing through the standing body so that the transverse plane is parallel to the floor. For a more complete listing of terms used in medicine for spatial orientation, please see the entry to “Anatomic Orientation Terms”.
- Transverse fracture
A fracture in which the break is across a bone, at a right angle to the long axis of the bone.