Angioplasty
Angioplasty: Procedure with a balloon-tipped catheter to enlarge a narrowing in a coronary artery. Also called Percutaneous Transluminal Coronary Angioplasty (PTCA).
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- Angiosarcoma
Angiosarcoma: A form of tissue cancer (sarcoma) that arises in the lining of blood vessels. Angiosarcomas tend to be aggressive, recur locally, and spread widely. Predisposing factors include lymphedema (as from a radical mastectomy), radiotherapy, foreign materials (such as steel and plastic) in the body, and environmental agents (such as arsenic solutions used to spray […]
- Angiostatin
Angiostatin: A fragment of a protein, plasminogen, that is involved in blood clotting. Angiostatin is normally secreted by tumors, and it appears to halt the process of developing new blood vessels, which is necessary to tumor development.
- Angiostrongyliasis
Angiostrongyliasis: Infection with the parasitic nematode (roundworm) Angiostrongylus. The two species that infect humans are A. cantonensis and A. costaricensis. A. cantonensis, the rat lungworm, is the most common cause of human eosinophilic meningitis (meningitis with eosinophils in the cerebrospinal fluid). The meningitis is due to the presence of the rat lungworm larvae in the […]
- Angiostrongylus infection
Angiostrongylus infection: Also called angiostrongyliasis. See: Angiostrongyliasis.
- Angiotensin
Angiotensin: A family of peptides that constrict blood vessels. Narrowing the diameter of the blood vessels causes blood pressure to rise.