Letter T
TR
It is a physics term used in MRI to explain how the image was made. Often this will have a number, or value depending on the MRI scanner.
TRABECULAR THICKENING
This look like thickened web-like lines within the breasts on a mammogram. This can be caused by multiple conditions such as mastitis, inflammatory carcinoma, radiation, surgery, edema and metastatic disease.
TRACER
Refers to the radioactive compound used in Nuclear Medicine exams.
TRACHEA
The main air tube. It connects the mouth/nose to the lungs.
TRANSITIONAL ANATOMY
Unusual anatomy which you are born with. It is usually of no consequence unless you are having surgery or spinal procedures such as a steroid shot or surgery. Make sure to let your doctor know you have transitional anatomy. Occasionally it can lead to back pain.
TRANSITIONAL CELL CARCINOMA
Cancer of the inner lining of ureters (tubes that drain urine) and bladder. Can often involve more than one site.
TRANSTENTORIAL
Through the tentorium. Sometimes a mass or blood can push parts of the brain through the tentorium.
TRANSVERSE PROCESS
The portion of the vertebra (backbone) that points towards the side. There are two transverse processes, or pieces, in each vertebra, the right and the left.
TREE-IN-BUD
A pattern commonly seen in an infectious or inflammatory process. This is a finding seen on a chest CT.
TRIGEMINAL NERVE
Also called the fifth nerve.
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