Also found in: Dictionary, Thesaurus, Medical, Wikipedia.


Dilation, especially of a hollow organ.



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.

References in periodicals archive ?
A discharge from a benign condition like ectasia is usually best left alone but if you get repeated infections ducts can be surgically removed.
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.
The severe form (high grade) is a global form of FVM, indicating a partial or intermittent obstruction in umbilical blood flow with venous ectasia, intramural fibrin deposition in large vessels, and/or foci of avascular or karyorrhectic villi.
sup][3] In the KD model group, 2, 3, 1, 1 mice were concomitant with left CAA-like ectasia changes on days 7, 14, 28, 56, respectively.
Not only is the location of the ectasia less common, but it also supports the relationship between CAE and elevated neutrophil to lymphocyte ratio.
Methods: Forty-six patients with coronary artery fistulae complicated with ectasia were randomly divided into a treatment group and a control group (n=23) which were given totally thoracoscopic surgery and thoracotomy respectively.
Coronary artery ectasia (CAE) is an abnormal dilatation of coronary arteries in which the ectatic segment exceeds the diameter of the normal adjacent segments or the diameter of the patient's largest coronary vessel by 1.
Finally intravascular ultrasound provides detailed high-quality images that can be valuable in distinguishing CAA from coronary artery ectasia as well as true CAA from pseudoaneurysms4.
In spite of being clinically silent, majority of patients have evidence of sub clinical disease including microscopic hematuria, proteinuria, lymphatic channel ectasia of subcutaneous tissue and scrotum.
He excludes arterial malformations like aneurysm, atresia, ectasia, and stenosis, because they are rarely seen in a vascular anomalies center, and includes noneponymous combined vascular malformations like lymphatic-venous malformation.