| FA | false aneurysm; Families Anonymous; Fanconi anemia; far advanced; fatty acid; febrile antigen; femor... |
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| IASA | interatrial septal aneurysm |
| ICA | Institute of Clinical Analysis; internal carotid artery; intracranial aneurysm; islet cell antibody |
| LVA | left ventricular aneurysm; left vertebral artery |
| PCA | para-chloramphetamine; parietal cell antibody; passive cutaneous anaphylaxis; patient care assistant... |
| infraclinoid aneurysm | An intracranial aneurysm occurring below the level of the anterior clinoid process of the sphenoid bone. (05 Mar 2000) |
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| intracavernous aneurysm | An aneurysm of the carotid artery within the cavernous sinus. (05 Mar 2000) |
| intracranial aneurysm | <neurology> A dilated and weakened portion of a cerebral blood vessel that is prone to rupture. A cerebral aneurysm may occur as a birth defect or develop as the result of long-standing poorly controlled hypertension. Symptoms of a ruptured cerebral aneurysm include a sudden, severe thunderclap headache that may be associated with nausea, vomiting and a decreased level of consciousness. (27 Sep 1997) |
| intracranial mycotic aneurysm | <radiology> 3% of all intracranial aneurysms; multiple in 20%, source: subacute bacterial endocarditis (65%), acute bacterial endocarditis (9%), menigitis (9%), septic thrombophlebitis (9%), myxoma, location: peripheral to first bifurcation of major vessel (64%), often near the surface of brain (especially over convexities), Note: develops recurrent bleeding more frequently than congenital aneurysms See: mycotic aneurysm (12 Dec 1998) |
| ectatic aneurysm | An aneurysm in which all the coats of the artery, though stretched, are unruptured. (05 Mar 2000) |
| embolomycotic aneurysm | An obsolete term for an aneurysm caused by an embolism composed of an infected vegetation from a cardiac valve. (05 Mar 2000) |
| traumatic aneurysm | An aneurysm resulting from physical damage to the wall of an artery; usually a false aneurysm or arteriovenous aneurysm. (05 Mar 2000) |
| true aneurysm | Localised dilation of an artery with an expanded lumen lined by stretched remnants of the arterial wall. (05 Mar 2000) |
| tubular aneurysm | The uniform dilation of an artery along a considerable distance. Synonym: cylindroid aneurysm. (05 Mar 2000) |
| false aneurysm | <surgery> Pulsating, encapsulated haematoma in communication with the lumen of a ruptured vessel, ventricular pseudoaneurysm, a cardiac rupture contained and loculated by pericardium, which forms its external wall. An aneurysm whose walls consist of adventitia and periarterial fibrous tissue and haematoma. (05 Mar 2000) |
| fusiform aneurysm | An elongated spindle-shaped dilation of an artery. (05 Mar 2000) |
| abdominal aortic coarctation | <radiology> 2% of all coarctations, (most common site is thoracic: just distal to origin of L SCA), may be isolated congenital anomaly, associated with: thoracic aortic coarctation, idiopathic hypercalcaemia syndrome, rubella syndrome (ToRCHS), Takayasu arteritis, neurofibromatosis, radiation therapy, fibromuscular disease (12 Dec 1998) |
| abdominal aortic plexus | <anatomy, neurology> An autonomic plexus surrounding the abdominal aorta, directly continuous with the thoracic aortic plexus above and continued inferior to the bifurcation of the aorta as the superior hypogastric plexus. Synonym: plexus aorticus abdominalis. (05 Mar 2000) |
| acute aortic dissection | <cardiology> A condition in which a weakened portion of the thoracic aorta begins to tear along the longitudinal axis of the vessel. Symptoms include sudden, severe chest pain that may radiate to the back accompanied by nausea, sweating and difficulty breathing. A common risk factor for this event is atherosclerotic vascular disease and-or hypertension. Advanced cases of syphilis (syphilitic aortitis) can also result in acute thoracic dissection as a complication of infection with Treponema pallidum. (27 Sep 1997) |
| aortic | Relating to the aorta or the aortic orifice of the left ventricle of the heart. Synonym: aortal. (05 Mar 2000) |