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obliteration

Pronunciation: ob-lit'er-a'shun

Definition: Blotting out, especially by filling of a natural space or lumen by fibrosis or inflammation. In radiology, disappearance of the contour of an organ when the adjacent tissue has the same x-ray absorption.

See: silhouette sign of Felson

[L. oblittero, to blot out]

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© Copyright 2017 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.
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