Fleischner sign (enlarged pulmonary artery)
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The Fleischner sign is a prominent central artery that can be caused either by pulmonary hypertension that develops or by distension of the vessel by a large pulmonary embolus. It can be seen on chest radiographs and CT pulmonary angiography.
It is seen most commonly in the setting of massive pulmonary embolism (defined angiographically as involving 50% or more of the major pulmonary artery branches). It has a low sensitivity but high specificity.
History and etymology
It is named after Felix Georg Fleischner (1893-1969), an Austrian-American radiologist, who first described it in 1961 7.
See also
- knuckle sign
- not to be confused with the Fleischner sign (tuberculosis of ileocaecal junction)
-<p>The<strong> Fleischner sign</strong> is a prominent central artery that can be caused either by <a href="/articles/pulmonary-hypertension-1">pulmonary hypertension</a> that develops or by distension of the vessel by a large <a href="/articles/pulmonary-embolism">pulmonary embolus</a>. It can be seen on chest radiographs and CT pulmonary angiography.</p><p>It is seen most commonly in the setting of massive pulmonary embolism (defined angiographically as involving 50% or more of the major pulmonary artery branches). It has a low sensitivity but high specificity. </p><h4>History and etymology</h4><p>It is named after <strong>Felix Georg Fleischner </strong>(1893-1969), an Austrian-American radiologist, who first described it in 1961 <sup>7</sup>.</p><h4>See also</h4><ul><li><a href="/articles/knuckle-sign-pulmonary-embolism-1">knuckle sign</a></li></ul>- +<p>The<strong> Fleischner sign</strong> is a prominent central artery that can be caused either by <a href="/articles/pulmonary-hypertension-1">pulmonary hypertension</a> that develops or by distension of the vessel by a large <a href="/articles/pulmonary-embolism">pulmonary embolus</a>. It can be seen on chest radiographs and CT pulmonary angiography.</p><p>It is seen most commonly in the setting of massive pulmonary embolism (defined angiographically as involving 50% or more of the major pulmonary artery branches). It has a low sensitivity but high specificity. </p><h4>History and etymology</h4><p>It is named after <strong>Felix Georg Fleischner </strong>(1893-1969), an Austrian-American radiologist, who first described it in 1961 <sup>7</sup>.</p><h4>See also</h4><ul>
- +<li><a href="/articles/knuckle-sign-pulmonary-embolism-1">knuckle sign</a></li>
- +<li>not to be confused with the <a href="/articles/fleischner-sign-tuberculosis-of-ileocaecal-junction">Fleischner sign (tuberculosis of ileocaecal junction)</a>
- +</li>
- +</ul>
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