- ectasia, ectasis
-
- annuloaortic e. supravalvular dilation of the aorta involving both its wall and the valve ring, which, however, remains of smaller diameter than the more distal ectatic wall; many cases are related to Marfan syndrome. SYN: aortoannular e..- aortoannular e. SYN: annuloaortic e..- corneal e. SYN: keratoectasia.- hypostatic e. dilation of a blood vessel, usually a vein, in a dependent portion of the body, as in varicose veins of the leg.- mammary duct e. dilation of mammary ducts by lipid and cellular debris in older women; rupture of ducts may result in granulomatous inflammation and infiltration by plasma cells. SEE ALSO: plasma cell mastitis.- scleral e. SYN: sclerectasia.- e. ventriculi paradoxa SYN: hourglass stomach.
Medical dictionary. 2011.