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Dilation, especially of a hollow organ.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



limited dilatation of the lumen of a hollow organ or blood vessel. Ectasia may be congenital, as in the case of bronchiectasis and telangiectasia. However, the condition occurs more often as a result of stenosis, above which the lumen of a hollow organ dilates. It is treated by surgery.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
In females among the 154 breast lesions, most common was fibroadenoma encountered in all age groups comprising of 67 cases(43.5%).Next commonest was benign breast disease seen in 31 cases (20.12%), followed by fibrocystic disease in 17 cases (11.03%), breast abscess in 11 cases (7.14%), mastitis in 06cases(3.89%), atypical ductal hyperplasia in 08 cases(5.19%), galactocele in 04 cases (2.59%), intraductal papilloma in 03 cases (1.94%), phylloides in 03 cases (1.94%) and single case (0.64%) of mammary duct ectasia.