Aneurysm
Updates to Article Attributes
Aneurysms are focal abnormal dilatation of a blood vessel. They typically occur in arteries; venous venous aneurysms are rare. Aneurysms may also occur in the heart.
Pathology
Pathological types
false aneurysm (or pseudoaneurysm)
Aetiology
Atherosclerotic
Non-atherosclerotic
-
infection:mycotic aneurysm, syphilis (luetic aneurysm)
trauma
iatrogenic
myocardial infarction: may cause left a ventricular aneurysm
flow-related (in cerebral AVM, contralateral ICA occlusion, etc.)
Morphology
Morphologically there are two main types of aneurysms. The morphology is not specific for any cause:
saccular aneurysm: eccentric, involving only a portion of the circumference of the vessel wall (e.g.cerebral berry aneurysm)
fusiform aneurysm: concentric, involving the full circumference of the vessel wall
Occasionally a 3rd type, serpentine aneurysm has has been classified as a separate entity 3.
Treatment and prognosis
Complications
rupture
distal thromboembolism
pressure effects
History and etymology
The word aneurysm traces its roots back to ancient Greek, specifically the word ἀνεύρυσμα(aneurysma), literally literally translating as an 'aperture'. It is itself a compound construction, derived from two roots, 'ἄνω-' (ano) meaning meaning 'up' and 'εὐρύς-'(eurys), meaning 'wide'4,5.
See also
-<p><strong>Aneurysms</strong> are focal abnormal dilatation of a blood vessel. They typically occur in arteries; venous aneurysms are rare. Aneurysms may also occur in the heart.</p><h4>Pathology</h4><h5>Pathological types</h5><ol>-<li><a href="/articles/true-aneurysm">true aneurysm</a></li>-<li>-<a href="/articles/false-aneurysm">false aneurysm </a>(or pseudoaneurysm)</li>-</ol><h5>Aetiology</h5><p>Atherosclerotic</p><ul><li><a href="/articles/arteriosclerosis">atherosclerosis</a></li></ul><p>Non-atherosclerotic</p><ul>-<li><a href="/articles/congenital-aneurysm">congenital</a></li>-<li><a href="/articles/systemic-hypertension">hypertension </a></li>-<li>-<a href="/articles/vasculitis">vasculitis </a><ul>-<li><a href="/articles/fibromuscular-dysplasia-1">fibromuscular dysplasia</a></li>-<li>infection: <a href="/articles/mycotic-aneurysm">mycotic aneurysm</a>, syphilis (<a href="/articles/luetic-aneurysm">luetic aneurysm</a>)</li>-</ul>-</li>-<li>-<a href="/articles/hereditary-connective-tissue-disease">hereditary connective tissue disorders</a><ul>-<li><a href="/articles/marfan-syndrome">Marfan syndrome</a></li>-<li><a href="/articles/ehlers-danlos-syndrome-2">Ehlers-Danlos syndrome</a></li>-<li><a href="/articles/arterial-tortuosity-syndrome">arterial tortuosity syndrome</a></li>-</ul>-</li>-<li>trauma</li>-<li>iatrogenic</li>-<li>-<a href="/articles/myocardial-infarction">myocardial infarction</a>: may cause left a ventricular aneurysm</li>-<li>flow-related (in cerebral AVM, contralateral ICA occlusion, etc.)</li>-</ul><h5>Morphology</h5><p>Morphologically there are two main types of aneurysms. The morphology is not specific for any cause:</p><ol>-<li>-<strong>saccular aneurysm</strong>: eccentric, involving only a portion of the circumference of the vessel wall (e.g. <a href="/articles/berry-aneurysm">cerebral berry aneurysm</a>)</li>-<li>-<strong>fusiform aneurysm</strong>: concentric, involving the full circumference of the vessel wall</li>-</ol><p>Occasionally a 3<sup>rd</sup> type, <a href="/articles/serpentine-aneurysm">serpentine aneurysm</a> has been classified as a separate entity <sup>3</sup>.</p><h4>Treatment and prognosis</h4><h5>Complications</h5><ul>-<li>rupture</li>-<li>distal thromboembolism</li>-<li>pressure effects</li>-</ul><h4>History and etymology</h4><p>The word aneurysm traces its roots back to ancient Greek, specifically the word <em>ἀνεύρυσμα</em> (aneurysma), literally translating as an 'aperture'. It is itself a compound construction, derived from two roots, '<em>ἄνω-</em>' (ano) meaning 'up' and '<em>εὐρύς-'</em> (eurys), meaning 'wide' <sup>4,5</sup>.</p><h4>See also</h4><ul>-<li><a href="/articles/thoracic-aortic-aneurysm">thoracic aortic aneurysm</a></li>-<li><a href="/articles/abdominal-aortic-aneurysm">abdominal aortic aneurysm</a></li>-<li><a href="/articles/popliteal-artery-aneurysm">popliteal artery aneurysm</a></li>-<li><a href="/articles/saccular-cerebral-aneurysm">cerebral berry aneurysm</a></li>-<li><a href="/articles/coronary-artery-aneurysm">coronary artery aneurysm</a></li>-<li><a href="/articles/splenic-artery-aneurysm">splenic artery aneurysm</a></li>-<li><a href="/articles/coeliac-artery-aneurysm">coeliac artery aneurysm</a></li>-<li><a href="/articles/mycotic-aneurysm">mycotic aneurysm</a></li>- +<p><strong>Aneurysms</strong> are focal abnormal dilatation of a blood vessel. They typically occur in arteries; venous aneurysms are rare. Aneurysms may also occur in the heart.</p><h4>Pathology</h4><h5>Pathological types</h5><ol>
- +<li><p><a href="/articles/true-aneurysm">true aneurysm</a></p></li>
- +<li><p><a href="/articles/false-aneurysm">false aneurysm </a>(or pseudoaneurysm)</p></li>
- +</ol><h5>Aetiology</h5><p>Atherosclerotic</p><ul><li><p><a href="/articles/arteriosclerosis">atherosclerosis</a></p></li></ul><p>Non-atherosclerotic</p><ul>
- +<li><p><a href="/articles/congenital-aneurysm">congenital</a></p></li>
- +<li><p><a href="/articles/systemic-hypertension">hypertension</a></p></li>
- +<li>
- +<p><a href="/articles/vasculitis">vasculitis</a></p>
- +<ul>
- +<li><p><a href="/articles/fibromuscular-dysplasia-1">fibromuscular dysplasia</a></p></li>
- +<li><p>infection: <a href="/articles/mycotic-aneurysm">mycotic aneurysm</a>, syphilis (<a href="/articles/luetic-aneurysm">luetic aneurysm</a>)</p></li>
- +</ul>
- +</li>
- +<li>
- +<p><a href="/articles/hereditary-connective-tissue-disease">hereditary connective tissue disorders</a></p>
- +<ul>
- +<li><p><a href="/articles/marfan-syndrome">Marfan syndrome</a></p></li>
- +<li><p><a href="/articles/ehlers-danlos-syndrome-2">Ehlers-Danlos syndrome</a></p></li>
- +<li><p><a href="/articles/arterial-tortuosity-syndrome">arterial tortuosity syndrome</a></p></li>
- +</ul>
- +</li>
- +<li><p>trauma</p></li>
- +<li><p>iatrogenic</p></li>
- +<li><p><a href="/articles/myocardial-infarction">myocardial infarction</a>: may cause left a ventricular aneurysm</p></li>
- +<li><p>flow-related (in cerebral AVM, contralateral ICA occlusion, etc.)</p></li>
- +</ul><h5>Morphology</h5><p>Morphologically there are two main types of aneurysms. The morphology is not specific for any cause:</p><ol>
- +<li><p><strong>saccular aneurysm</strong>: eccentric, involving only a portion of the circumference of the vessel wall (e.g. <a href="/articles/berry-aneurysm">cerebral berry aneurysm</a>)</p></li>
- +<li><p><strong>fusiform aneurysm</strong>: concentric, involving the full circumference of the vessel wall</p></li>
- +</ol><p>Occasionally a 3<sup>rd</sup> type, <a href="/articles/serpentine-aneurysm">serpentine aneurysm</a> has been classified as a separate entity <sup>3</sup>.</p><h4>Treatment and prognosis</h4><h5>Complications</h5><ul>
- +<li><p>rupture</p></li>
- +<li><p>distal thromboembolism</p></li>
- +<li><p>pressure effects</p></li>
- +</ul><h4>History and etymology</h4><p>The word aneurysm traces its roots back to ancient Greek, specifically the word <em>ἀνεύρυσμα</em> (aneurysma), literally translating as an 'aperture'. It is itself a compound construction, derived from two roots, '<em>ἄνω-</em>' (ano) meaning 'up' and '<em>εὐρύς-'</em> (eurys), meaning 'wide' <sup>4,5</sup>.</p><h4>See also</h4><ul>
- +<li><p><a href="/articles/thoracic-aortic-aneurysm">thoracic aortic aneurysm</a></p></li>
- +<li><p><a href="/articles/abdominal-aortic-aneurysm">abdominal aortic aneurysm</a></p></li>
- +<li><p><a href="/articles/popliteal-artery-aneurysm">popliteal artery aneurysm</a></p></li>
- +<li><p><a href="/articles/saccular-cerebral-aneurysm">cerebral berry aneurysm</a></p></li>
- +<li><p><a href="/articles/coronary-artery-aneurysm">coronary artery aneurysm</a></p></li>
- +<li><p><a href="/articles/splenic-artery-aneurysm">splenic artery aneurysm</a></p></li>
- +<li><p><a href="/articles/coeliac-artery-aneurysm">coeliac artery aneurysm</a></p></li>
- +<li><p><a href="/articles/mycotic-aneurysm">mycotic aneurysm</a></p></li>
- +<li><p><a href="/articles/renal-artery-aneurysm" title="Renal artery aneurysm">renal artery aneurym</a></p></li>