angi-, angio-, angei-, -angium +

A hemangioendothelioma with embryonic elements of mesenchymal origin.

A true neoplasm of vascular origin, characterized by proliferation of endothelial cells in and about the vascular lumen; it is usually considered to be intermediate in grade between the hemangioma and the hemangiosarcoma but sometimes is used to denote the latter.

A hemangioma containing fibrous tissue.

1. An extremely common benign tumor, occurring most commonly in infancy and childhood, made up of newly formed blood vessels, and resulting from malformation of angioblastic tissue of fetal life. There are two main types: capillary and cavernous.
2. A general term denoting a benign or malignant vascular tumor that resembles the classic type of hemangioma but occurs at any age.

A condition in which multiple hemangiomas are developed.

A layer of parenchymal cells capable of being transformed into meristem to give rise to the root cambium and cork cambium and to branch roots.

A tumor composed of spindle cells with a rich vascular network, which apparently arises from pericytes.

It may be benign or malignant and usually occurs in the lower extremities or retroperitoneum.

A rare malignant tumor of vascular origin, formed by proliferation of endothelial tissue lining irregular vascular channels; it usually occurs in the skin, soft tissues, breast, or liver.

An infectious disease, especially of children, characterized by a sudden occurrence of fever, loss of appetite, and throat ulcerations, caused by a Coxsackie virus: Herpangina is also called mouth blisters and it is the name of a painful mouth infection caused by coxsackieviruses.

A medical-dictionary definition of herpangina state that it is an acute infectious disease caused by either group A or group B coxsackievirus, or by echoviruses, chiefly affecting young children in the summer.

Characteristics of herpangina include vesiculoulcerative lesions on the mucous membranes of the throat, dysphagia, vomiting, and fever.

1. A radiographic diagnostic study of the heart in which valves and vessels on the left side are examined via x-ray and fluoroscopy following the introduction of a contrast media.
2. Examination of the left side of the heart and associated blood vessels using x-rays following the injection of a radiopaque substance.

Inflammation of lymph vessels.

The thin membrane which helps to support the capillary loops in a renal glomerulus.

A structure in which microspores are formed.

Conjoined twins united by the vessels of the umbilical cord (ompha, "navel" + angeion, "vessel", + pagos, "thing fixed").

A case or sac containing an oospore (a fertilized female reproductive cell in algae and fungi).