Path. [mod.L., a. Gr. θρόμβος lump, piece, clot of blood, curd of milk.] † a. A small tumor occasioned by the escape of blood from a vein into the adjacent cellular tissue, and its coagulation there. Obs. b. A fibrinous clot that forms in a blood-vessel and obstructs the circulation.

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  Milk thrombus, a tumor caused by accumulation of milk in the ducts during lactation (Funk’s Standard Dict., 1895).

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1693.  trans. Blancard’s Phys. Dict. (ed. 2), Thrombus, the Coagulation of Blood or Milk into Clots or Clusters.

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1706.  Phillips (ed. Kersey), Thrombus.… Among Surgeons a small Swelling that arises after the Operation of Bloud-letting, when the Orifice is made too small.

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1866.  A. Flint, Princ. Med. (1880), 28. A coagulum formed during life in the heart or in the vessels is called a thrombus.

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1873.  Ralfe, Phys. Chem., 16. A thrombus blocks up a cerebral artery, and acute softening of the cerebral substance supplied by that artery is the result.

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1901.  Osler, Princ. & Pract. Med., i. 12. Inflammation of the arteries with thrombus formation has been frequently described in typhoid fever.

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