A growth on a membrane, e.g. on the cusps of valves in the heart.
An abnormal outgrowth from a membrane, fancied to resemble a vegetable growth. In ulcerative endocarditis, such outgrowths, consisting of fibrin with enmeshed blood cells, are found on the membrane lining the heart valves.
Roughenings, comprising fibrin and blood cells, that appear upon the valves of the heart, usually as the result of acute rheumatism. They lead in time to narrowing of the openings from the cavities of the heart, or to incompetence of the valves that close these openings.
A morbid luxurious outgrowth on any part, especially wart-like projections made up of collections of fibrin in which are enmeshed white and red blood cells; sometimes seen on denuded areas of the endocardium covering the valves of the heart.
A peculiar development of biological material encircling a valve, consisting of clusters of blood platelets, microorganisms, and a clotting-related protein.
Floral-like outgrowths resembling plants, as observed on the heart valves in cases of endocarditis. The term is also used for papillomas and polyp growths.