| AN | acanthosis nigricans; acne neonatorum; acoustic neuroma; adult, normal; ala nasi; amyl nitrate; aneu... |
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| IAAA | inflammatory abdominal aortic aneurysm |
| IASA | interatrial septal aneurysm |
| RCDA | recurrent chronic dissecting aneurysm |
| TAA | thioacetamide; thoracic aortic aneurysm; total ankle arthroplasty; transverse aortic arch; tumor-ass... |
| worm aneurysm | An aneurysm in horses caused by Strongylus vulgaris larvae; usually involving the mesenteric arteries. Synonym: worm aneurysm. (05 Mar 2000) |
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| mural aneurysm | Thinning, stretching, and bulging of a weakened ventricular wall, usually as a result of myocardial infarction; rarely postinflammatory or congenital. Synonym: mural aneurysm, ventricular aneurysm. (05 Mar 2000) |
| consecutive aneurysm | An aneurysm that has enlarged and spread to the surrounding tissues in consequence of rupture of its walls. Synonym: consecutive aneurysm. (05 Mar 2000) |
| coronary aneurysm | Aneurysm of a coronary vessel. A coronary artery aneurysm is rarely congenital; it is usually due to atherosclerosis, inflammatory processes, or a coronary fistula. (12 Dec 1998) |
| mycotic aneurysm | <radiology> Aetiology, IV drug abuse, bacterial endocarditis (12%), immunocompromise (malignancy, EtOH, steroids, chemo, DM, etc.), S/P aortic valve surgery, CABG organism, S. Aureus (53%), Salmonella (33-50%), streptococcus Mycobacterium site, ascending aorta greater than visceral artery greater than intracranial artery greater than upper/lower extremity artery findings, saccular structure arising eccentrically from aortic wall, periaortic gas formation, adjacent vertebral osteomyelitis, adjacent reactive lymph node enlargement, life threatening hemmorhage (75%), 67% overall mortality (12 Dec 1998) |
| Pott's aneurysm | Dilation and tortuosity of a vein resulting from an acquired communication with an adjacent artery. Synonym: Pott's aneurysm, varix anastomoticus. (05 Mar 2000) |
| cylindroid aneurysm | The uniform dilation of an artery along a considerable distance. Synonym: cylindroid aneurysm. (05 Mar 2000) |
| saccular aneurysm | A saclike bulging on one side of an artery. Synonym: ampullary aneurysm. (05 Mar 2000) |
| heart aneurysm | An aneurysmal dilatation of a portion of the wall of the ventricle, usually the left, or, rarely, a saccular protrusion through it (false aneurysm of the heart). It is usually consequent to myocardial infarction but other causes such as bacterial endocarditis or trauma have been described. (12 Dec 1998) |
| hernial aneurysm | The protrusion of the stretched inner coats of an artery through a wound in the adventitia. (05 Mar 2000) |
| serpentine aneurysm | Dilation and tortuosity of an artery, sometimes affecting the temporal, splenic, or iliac arteries in the elderly. (05 Mar 2000) |
| supraclinoid aneurysm | An intracranial aneurysm located immediately above the anterior clinoid process of the sphenoid bone. (05 Mar 2000) |
| syphilitic aneurysm | An aneurysm, usually involving the thoracic aorta, resulting from tertiary syphilitic aortitis. (05 Mar 2000) |
| diffuse aneurysm | An aneurysm that has enlarged and spread to the surrounding tissues in consequence of rupture of its walls. Synonym: consecutive aneurysm. (05 Mar 2000) |
| dissecting aneurysm | Splitting or dissection of an arterial wall by blood entering through an intimal tear or by interstitial haemorrhage; more common in the aorta, for example, with an intimal tear near the aortic valve (Type I) or subclavian artery and distal dissection of the media for a variable distance, frequently rupturing through the outer wall. (05 Mar 2000) |