What does Marginated mean in medical terms?
Medical Definition of margination 1 : the act or process of forming a margin specifically : the adhesion of white blood cells to the walls of damaged blood vessels. 2 : the action of finishing a dental restoration or a filling for a cavity margination of an amalgam with a bur.
What is a Margination?
“Margination” refers to the movement of particles in flow toward the walls of a channel. The term was first coined in physiology for describing the behavior of white blood cells (WBCs) and platelets in blood flow.
What does sharply Marginated mean?
: having a margin distinct in appearance or structure a sharply marginated lesion.
What does the medical term Diapedesis mean?
Medical Definition of diapedesis : the passage of blood cells through capillary walls into the tissues. — called also emigration. Other Words from diapedesis.
Are all lesions cancerous?
An area of abnormal tissue. A lesion may be benign (not cancer) or malignant (cancer).
Can benign tumors have irregular borders?
They do not spread to local structures or to distant parts of the body. Benign tumors tend to grow slowly and have distinct borders. Benign tumors are not usually problematic. However, they can become large and compress structures nearby, causing pain or other medical complications.
What is diapedesis in inflammation?
Corresponding molecules on the surface of leukocytes called integrins attach to these adhesion molecules allowing the leukocytes to flatten and squeeze through the space between the endothelial cells. This process is called diapedesis or extravasation.
What type of blood cells use diapedesis?
11.5). Diapedesis requires homotypic interactions between adhesion molecules found on both neutrophils and endothelial cells which are known asplatelet-endothelial cell adhesion molecules (PECAMs).
What’s the difference between a tumor and a lesion?
A lesion describes any area of damaged tissue. All tumors are lesions, but not all lesions are tumors. Other brain lesions can be caused by stroke, injury, encephalitis and arteriovenous malformation.
Why is Margination important?
Abstract. Proper functioning of white blood cells is not possible without their ability to adhere to vascular endothelium, which may occur only if they are close enough to vessel walls. To facilitate the adhesion, white blood cells migrate toward the vessel walls in blood flow through a process called margination.
What causes Margination in inflammation?
This margination process is generally attributed to red blood cells (which normally pile up behind the larger leukocytes in capillaries) that overtake the leukocytes and tend to push them toward the venular wall.
How often are suspicious calcifications cancerous?
According to one study, suspicious calcifications that require follow-up testing turn out to be cancer approximately 12% to 40% of the time.
What does marginated mean in medical terms?
Medical Definition of marginated : having a margin distinct in appearance or structure a sharply marginated lesion
What does margin mean to you?
1. To provide with or be a margin to; border. 2. To add margin to (a stock portfolio). Biology Having a distinct border or edge. mar′gin·a′tion n. The American Heritage® Medical Dictionary Copyright © 2007, 2004 by Houghton Mifflin Company. Published by Houghton Mifflin Company. All rights reserved. Want to thank TFD for its existence?
What does a marginate plant look like?
See margin, -ate 1 Its leaves are obovate, usually marginate, and its white flowers are very fragrant. This species can readily be distinguished by the distinctly marginate bulb at the base of the stem.