protrusion

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protrusion

 [pro-troo´zhun]
extension beyond the usual limits, or above a plane surface.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.

pro·tru·sion

(prō-trū'zhŭn),
1. The state of being thrust forward or projected.
2. In dentistry, a position of the mandible forward from centric relation.
[L. protrusio]
Farlex Partner Medical Dictionary © Farlex 2012

herniated disk

Herniated intervertebral disk, herniated nucleus pulposus, prolapsed intervertebral disk, slipped disk Neurology The herniation of an intervertebral disk, most commonly, lumbar; the term herniation in this context describes a spectrum of disk defects
Herniation disk types, used for MRI exams
Bulge–circumferential symmetric extension of the disk beyond interspace
Protrusion–focal or asymmetric extension of the disk beyond interspace
Extrusion–more extreme extension of the disk beyond interspace Note: Bulges and protrusions on MRI examination are common findings in normal subjects, and appear to be coincidental findings–NEJM 1994; 331:69oa  
McGraw-Hill Concise Dictionary of Modern Medicine. © 2002 by The McGraw-Hill Companies, Inc.

pro·tru·sion

(prō-trū'zhŭn)
1. The state of being thrust forward or projected.
2. dentistry A position of the mandible forward from centric relation.
[L. protrusio]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

pro·tru·sion

(prō-trū'zhŭn)
1. In dentistry, position of mandible forward from centric relation.
2. The state of being thrust forward or projected.
[L. protrusio]
Medical Dictionary for the Dental Professions © Farlex 2012
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