Medical Dictionary Definitions A-Z List
Medical Dictionary Definitions A - Z - «P»:
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PX
PX: Medical abbreviation for prognosis....
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PXE
PXE: See pseudoxanthoma elasticum....
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Pyarthrosis
Pyarthrosis: Infectious arthritis. Pyarthrosis is typically caused by a bacterial infection in the joint. Diagnosis is made by analysis of fluid that has been removed from the joint, including microscopic examination and culture. Pyarthrosis requires drainage of the joint and antibiotics, usually in...
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Pycnodysostosis
Pycnodysostosis: An inherited disorder of the bone that causes short stature and abnormally dense brittle bones. Due to a defect in an enzyme: cathepsin
K. The French artist Toulouse-Lautrec is thought to have pycnodysostosis. Also spelled pyknodysostosis with a "k". ...
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Pyelo
Pyelo: Short for pyelonephritis, which is bacterial
infection of the kidney. Pyelonephritis can be acute (sudden) or
chronic (slow, subtle, and stubborn). It is most often due to the
ascent of bacteria from the
bladder up the ureters to infect the kidneys.
The symptoms of pyelonephritis include...
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Pyelogram
Pyelogram: X-ray study of the kidney especially showing the
pelvis (urine-collecting basin) of the kidney and the ureter. ...
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Pyelonephritis
Pyelonephritis: Bacterial infection of the kidney.
Pyelonephritis can be acute (sudden) or chronic (slow, subtle, and
stubborn). It is most often due to the ascent of bacteria from the
bladder up the ureters to infect the kidneys.
The symptoms of pyelonephritis include flank (side) pain, fever, ...
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Pyelonephritis in children
Pyelonephritis in children: kidney infection in children. See: Urinary tract infection in children....
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Pyloric stenosis
Pyloric stenosis: Narrowing (stenosis) of the outlet of the
stomach so that food cannot pass easily from it into the duodenum, resulting in feeding
problems and projectile vomiting. The obstruction can be corrected by a relatively simple
surgical procedure. ...
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Pylorus
Pylorus: The outlet of the stomach. ...
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Pyoderma gangrenosum
Pyoderma gangrenosum: An ulcerating condition of the skin
leading to hollowed-out areas (ulcers) with heaped-up borders and a typical appearance. The lesion(s) usually begin as soft raised nodules on the skin which proceed to ulcerate. The ulcers enlarge and the skin at the edge becomes purple-red....
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Pyridoxine
Pyridoxine: One of the vitamin B6 group (which also includes pyridoxal and pyridoxamine) that is transformed in the body to pyridoxal phosphate, which functions as a coenzyme, a substance that enhances the action of an enzyme and thereby helps catalyze and speed a biochemical reaction. (A number of ...
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Pyrimidine
Pyrimidine: One of the two classes of bases in DNA and RNA. The
pyrimidine bases are thymine (T) and cytosine (C) in DNA and thymine (T) and uracil (U) in
RNA. ...
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Pyrophosphate arthropathy
Pyrophosphate arthropathy: Joint damage due to deposition of calcium pyrophosphate. Pyrophosphate arthropathy most commonly affects the knees, wrists and knuckles and tends to be symmetrical....
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Pyrosis
Pyrosis: A technical term for what is popularly called heartburn, a burning sensation in the upper abdomen. In many languages there is a technical term such as pyrosis and a popular term for the same phenomenon. For example, pyrosis is popularly known in French as brûlure epigastrique and in Spanis...
