Letter P
PYRIFORM SINUS
A small air pocket located behind and above the vocal cords. Fluid, debris, or even cancer can occur here.
PYELONEPHRITIS
Infection of the kidney(s).
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.
PUNCTATE CALCIFICATION
A calcification that is less than 0.5 mm in size.
PULMONARY VESSELS
Pulmonary arteries and veins.
PULMONARY VASCULAR CONGESTION
Early stage of pulmonary edema (fluid in the lungs).
PULMONARY NODULE
A white dot in the lung on a chest x-ray. This may represent early cancer. Alternatively, this can be associated with an infection, inflammation or metastatic disease. Also known as “nodule” or “lung nodule”.
PULMONARY HYPERTENSION
Increased pressure in the pulmonary arteries.
PULMONARY EMBOLISM (PE)
Blood clot within a blood vessel (pulmonary artery) in the lungs. (Please note that there are multiple pulmonary arteries supplying different sections of the lungs.)
PULMONARY EDEMA
Fluid in the lungs. Normal lungs can be thought of as dry sponges containing multiple air spaces. In pulmonary edema, the lungs are like fluid-soaked sponges. This is commonly seen with a weakened or damaged heart. Please look at “interstitial edema” for a slightly different description that may help you understand this better.
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