PULMONARY VESSELS
Pulmonary arteries and veins.
PUNCTATE CALCIFICATION
A calcification that is less than 0.5 mm in size.
PUTAMEN
Located in the central part of the brain. Sometimes it is called the basal ganglia. It can be a common location of stroke or hemorrhage related to high blood pressure.
PYELONEPHRITIS
Infection of the kidney(s).
PYRIFORM SINUS
A small air pocket located behind and above the vocal cords. Fluid, debris, or even cancer can occur here.
QUADRICEPS
Muscles that make up front part of upper thigh.
QUANTIFY
To count.
RADIAL SCAR
Also called 'complex sclerosing lesion.' This is not a scar, and it is not caused by surgery or trauma to the breast. This can look like cancer on breast imaging studies, but it is non-cancerous. It should be surgically removed because it can be associated with atypical ductal hyperplasia (see separate entry) or cancer.
RADICULOPATHY
Symptoms that are related to a pinched nerve. They can be on either side of the body or both. The feeling is often described as "electrical" pain or "pins and needles". Can often result from a pinched nerve from a disc herniation.
RADIODENSE
Adjective. Appearing white on an x-ray.