Category: P
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Postoperative tetanus
Tetanus that follows an operation as a result of contamination of the surgical incision.
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Perineal testis
A testis located in the perineal region outside the scrotum.
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Pleural tent
In thoracoscopy or thoracic surgery, a mediastinal or subpleural blanket used to reinforce the suture line.
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Paralleling technique
A dental radiographic technique that requires placement of the film parallel to the teeth and positioning of the central ray perpendicular to the teeth. The orientation of the film, teeth, and central ray produces a radiograph with minimal geometric distortion. Also called right-angle or long-cone technique.
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Phosphonate
A radioactive tracer consisting of lechnetium-99m linked to methylene diphosphonate. It is used in nuclear medicine to obtain images of bone and bone diseases, e.g., fractures not seen on plain x-rays, malignancies, and osteomyelitis.
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Paraguay copper tea
Tea, also known as yerba mate, made from the leaves and stems of Ilex paraguayensis. It is a stimulating drink and contains volatile oil, tannin, and caffeine.
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Paroxysmal ventricular tachycardia
Ventricular tachycardia beginning and ending suddenly. A swift, irregular heartbeat originating in the ventricle. A fast heart rhythm originating in the ventricle.
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Pacemaker-mediated tachycardia
A problem of dual-chamber cardiac pacemakers in which tachycardia develops due to improper functioning of the pacemaker. This can be treated by reprogramming the electronic signals to the atrium.
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Purulent synovitis
Synovitis with purulent effusion within the sac.
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Peripheral anterior synechia
Adhesion between the iris and periphery of the cornea (PAS); usually near the anterior chamber angle. Can cause glaucoma by blocking the outflow of aqueous. Caused by inflammation