Category: P

A thin shell of osseous tissue covering a giant-cell sarcoma in a bone.  

Bone formed by osteoblasts of the periosteum.  

Bone formed beneath the perichondrium.  

A covalent bond in which one atom attracts the shared pair of electrons more strongly than does the other atom, and thus has a slightly negative charge. The atom with the weaker attraction has a slightly positive charge.  

The collection of blood before surgery from the patient, or a cross matched donor, to be used if needed during an elective operation or during the postoperative recovery period.  

The collection of a patient’s own blood before surgery, to be used if the patient needs a transfusion during or after the surgery, to reduce the possibility of needing banked blood, and with it the risk of having a transfusion reaction or contracting a transmissible infection.  

Infiltration of the stellate ganglion with a local anesthetic.  

Sight without recognition due to a brain lesion.  

Obtaining renal tissue for analysis with a needle inserted through the skin, usually done after the kidney has been localized by ultrasound, computed tomography, or angiography. This technique is used to establish a diagnosis of renal dysfunction, determine prognosis in patients with renal disease, evaluate the extent of renal injury, and determine appropriate therapy. The…

Use of a directional, high-speed, rotating cutter attached to a vacuum source to gather multiple contiguous core samples of breast tissue through a single point of insertion. This minimally invasive procedure is usually performed under local anesthesia, using stereotactic imaging or real-time ultrasonography.