Embolism
Embolism: The obstruction of a blood vessel by a foreign substance or a blood clot that travels through the bloodstream, lodging in a blood vessel, plugging the vessel. Foreign substances that can cause embolisms include air bubbles, amniotic fluid, globules of fat, clumps of bacteria, chemicals (such as talc), and drugs (mainly illegal ones). Blood clots are the most common causes of embolisms. A pulmonary embolus is a blood clot that has been carried through the blood into the pulmonary artery (the main blood vessel from the heart to the lung) or one of its branches, plugging that vessel within the lung.
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- Emboli
Emboli: Something that travels through the bloodstream, lodges in a blood vessel and blocks it. Examples of emboli are a detached blood clot, a clump of bacteria, and foreign material such as air. Pulmonary emboli are blood clots that have been carried through the blood into the pulmonary artery (the main blood vessel from the […]
- EM (electron microscope)
EM (electron microscope): A microscope in which an electron beam replaces light to form the image. Electron microscope stands for electron microscope (the device) and for electron microscopy (the technique and field). Electron microscope generally offers greater magnification and resolution of objects. Electron microscope was invented by a team led by Vladimir Zworykin, an engineer […]
- Enteropathy, protein-losing
Enteropathy, protein-losing: A condition in which an excessive amount of plasma protein is lost into the intestine. Protein-losing enteropathy can be due to diverse causes, including celiac sprue, extensive ulceration of the intestine, intestinal lymphatic blockage, and infiltration of leukemic cells into the intestinal wall.
- Enteroplasty
Enteroplasty: Surgery on the intestine, especially to enlarge a constricted segment or lengthen a short bowel.
- Enteroscopy
Enteroscopy: The use of a flexible instrument (a “scope”) to examine the small intestine, a very long hollow tube located between the stomach and colon (large intestine) and made up of the duodenum, jejunum, and ileum. The upper parts of the small intestine, the duodenum and jejunum, are usually examined as an extension of upper […]