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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 It might be outdated or ideologically biased.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 duct ectasia, the mammary duct-associated inflammatory disease sequence involves squamous metaplasia of lactiferous ducts, causing block-age (obstructive mastopathy) with peri-ductal inflammation and possible duct rupture (16).
It is strongly suggestive of the diagnosis (*) Tubular ectasia of rete testes Not routinely recommended.
Taking into account the midterm or long-term outcomes of corneal refractive surgery, we have not made sure whether high IOP is a risk factor for corneal ectasia, and further studies, such as the observations on corneas after LASIK with increased IOP, and clinical observations should be designed and carried out.
This observation was also found in our present study, showing medium positive correlation between IL1b, IL-4, and IL-6 and the severity of the corneal ectasia.
Manginas et al., "Frequency of coronary artery ectasia in patients undergoing surgery for ascending aortic aneurysms," American Journal of Cardiology, vol.
Factors probably involved with multiple coronary artery thrombosis in our patient include a proinflammatory state and blood turbulence caused by coronary ectasia, and heightened inflammatory response caused by the acute occlusion of the first vessel.
who identified 10 patients with gastric vascular ectasia after bone marrow transplantation [6].
Nguyen H, Le C, Nguyen H (2009) Gastric antral vascular ectasia (Watermelon stomach): an enigmatic and often-overlooked cause of gastrointestinal bleeding in the elderly.
Congestion and venous stasis lead to endothelial injury, subsequent fibrosis, thrombosis, FVM, and vascular ectasia. Vasospasm can occur and may augment the circulatory compromise.
Duct ectasia occurs when a retroareolar duct fills with fluid.
Some of the left coronary arteries in the KD model group (7 in 40, 17.5%) exhibited CAA-like ectasia changes.
Gastric antral vascular ectasia (GAVE) is a relatively uncommon disorder, which accounts for 4% of nonvariceal upper GI bleeding.