A clot in the cardiovascular systems formed during life from constituents of blood; it may be occlusive or attached to the vessel or heart wall without obstructing the lumen (mural t.). [L. fr. G. thrombos, a clot]
- agglutinative t. SYN: hyaline t..
- agonal t. a heart clot formed during the act of dying after prolonged heart failure.
- antemortem t. a clot formed in the circulation during life.
- ball t. an unattached, spherical antemortem t. found in the left or right atrium usually in certain cases of mitral stenosis.
- ball-valve t. ball t. intermittently occluding the mitral or tricuspid orifice.
- bile t. an intracanalicular deposit of bile, usually a result of obstruction to bile drainage.
- currant jelly t. SYN: postmortem t..
- fibrin t. a t. formed by repeated deposits of fibrin from the circulating blood; it usually does not completely occlude the vessel.
- globular t. one of a number of thrombi of varying size, from a pea to a walnut, within the heart cavity, connected by a delicate fibrinous network.
- hyaline t. a translucent colorless plug, partly or wholly filling a capillary or small artery or vein, formed by agglutination of red blood corpuscles. SYN: agglutinative t..
- infective t. a t. formed in septic phlebitis.
- laminated t. a t. formed gradually by clotting of the blood in successive layers.
- marantic t., marasmic t. a t. formed in cases of marasmus or general debility.
- mixed t. a laminated t., the layers of different ages being of different color or consistency. SYN: stratified t..
- mural t. a t. formed on and attached to a diseased patch of endocardium, not on a valve or on one side of a large blood vessel. SEE ALSO: parietal t..
- obstructive t. a t. due to obstruction in the vessel from compression or other cause.
- pale t. SYN: white t..
- parietal t. an arterial t. adhering to one side of the wall of the vessel. SEE ALSO: mural t..
- postmortem t. a clot formed within the heart or in a blood vessel after death, usually mainly red blood cells. SYN: currant jelly t..
- propagated t. creeping thrombosis.
- red t. a t. formed rapidly by the coagulation of stagnating blood, composed mainly of red blood cells rather than platelets.
- secondary t. a t. formed about an embolus as a nucleus.
- stratified t. SYN: mixed t..
- valvular t. a parietal t. that projects into the lumen of the vessel.
- white t. an opaque dull white t. composed essentially of blood platelets. SYN: pale t..

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throm·bus 'thräm-bəs n, pl throm·bi -.bī, -.bē a clot of blood formed within a blood vessel and remaining attached to its place of origin compare EMBOLUS

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a blood clot (see thrombosis).

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throm·bus (thromґbəs) pl. thromґbi [Gr. thrombos clot] a stationary blood clot along the wall of a blood vessel, frequently causing vascular obstruction. Some authorities differentiate thrombus formation from simple coagulation or clot formation. Cf. embolus.

Coronary artery thrombus in a patient with unstable angina; coronary angiography shows a globular thrombus (arrow) in the anterior interventricular branch of the left coronary artery at the level of, and extending into, the second diagonal branch.

Medical dictionary. 2011.

Look at other dictionaries:

  • thrombus — [ trɔ̃bys ] n. m. • 1539; trumbe v. 1370; mot lat., du gr. thrombos ♦ Méd. Masse sanguine coagulée dans un vaisseau, où elle détermine une thrombose. ● thrombus nom masculin (grec thrombos, caillot) Masse sanguine coagulée dans un vaisseau, dont… …   Encyclopédie Universelle

  • Thrombus — Throm bus, n.; pl. {Thrombi}. [NL., fr. Gr. ? a lump, a clot of blood.] (Med.) (a) A clot of blood formed of a passage of a vessel and remaining at the site of coagulation. (b) A tumor produced by the escape of blood into the subcutaneous… …   The Collaborative International Dictionary of English

  • Thrombus — (gr.), Blutklumpen, Blutpfropf, Blutkuchen, Blutgeschwulst; daher Thromboschĕsis, Verhalten, Zurückhaltung von Blutklumpen. Thrombōsis (Pfropfbildung), Verstopfung der Arterien u. Venen durch ein Blutgerinsel. T. lactea, Stockung der Milch in den …   Pierer's Universal-Lexikon

  • Thrombus — (griech.), s. Thrombosis …   Meyers Großes Konversations-Lexikon

  • Thrombus — Thrombus,der:⇨Blutgerinnsel …   Das Wörterbuch der Synonyme

  • thrombus — 1690s, Mod.L., from Gk. thrombos lump, piece, clot of blood, curd of milk …   Etymology dictionary

  • thrombus — [thräm′bəs] n. pl. thrombi [thräm′bī΄] [ModL < Gr thrombos, a clot < IE * dhrómbhos < base * dherebh , to coagulate] the fibrinous clot attached at the site of thrombosis …   English World dictionary

  • Thrombus — « Caillot » redirige ici. Pour les autres significations, voir Caillot (homonymie). Un caillot sanguin …   Wikipédia en Français

  • Thrombus — Clot redirects here. For other uses, see Clot (disambiguation). Not to be confused with Embolism. Blood clot diagram. A thrombus (Greek θρόμβος), or blood clot, is the final product of the blood coagulation step in hemostasis. It is achieved via… …   Wikipedia

  • Thrombus — Schematische Darstellung Aus den Herzkranzgefä …   Deutsch Wikipedia

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