Fleischner sign (enlarged pulmonary artery)
Updates to Article Attributes
The Fleischner sign refers to a prominent central pulmonary artery that can be commonly caused either by pulmonary hypertension or by distension of the vessel by a large pulmonary embolus. It can be seen on chest radiographs, CT pulmonary angiography (CTPA), and MR pulmonary angiography (MRPA).
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.
It is one of several described signs of pulmonary embolus on chest radiographs.
History and etymology
It is named after Felix GeorgGeorge Fleischner(1893-1969), an Austrian-American radiologist, who first described it in 1961 7. Pre-World War II, Fleischner started off aswas a Professor of Radiology in Vienna, before moving to Boston where he eventually became a Radiology Professor at Harvard College.
See also
- knuckle sign
-
not to be confused with theFleischner sign (tuberculosis of ileocaecal junction)
-<p>The<strong> Fleischner sign</strong> refers to a prominent <a href="/articles/pulmonary-trunk">central pulmonary artery</a> that can be commonly caused either by <a href="/articles/pulmonary-hypertension-1">pulmonary hypertension</a> or by distension of the vessel by a large <a href="/articles/pulmonary-embolism">pulmonary embolus</a>. It can be seen on <a href="/articles/chest-radiograph">chest radiographs</a>, CT pulmonary angiography, and MR 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><p>It is one of several described <a href="/articles/signs-of-pulmonary-embolus-on-chest-radiography">signs of pulmonary embolus on chest radiographs</a>.</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>. Fleischner started off as a Professor of Radiology in Vienna before moving to Boston where he became a Radiology Professor at Harvard.</p><h4>See also</h4><ul>- +<p>The<strong> Fleischner sign</strong> refers to a prominent <a href="/articles/pulmonary-trunk">central pulmonary artery</a> that can be commonly caused either by <a href="/articles/pulmonary-hypertension-1">pulmonary hypertension</a> or by distension of the vessel by a large <a href="/articles/pulmonary-embolism">pulmonary embolus</a>. It can be seen on <a href="/articles/chest-radiograph">chest radiographs</a>, CT pulmonary angiography (CTPA), and MR pulmonary angiography (MRPA).</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><p>It is one of several described <a href="/articles/signs-of-pulmonary-embolus-on-chest-radiography">signs of pulmonary embolus on chest radiographs</a>.</p><h4>History and etymology</h4><p>It is named after <a title="Felix George Fleischner" href="/articles/felix-fleischner">Felix George Fleischner</a> (1893-1969), an Austrian-American radiologist, who first described it in 1961 <sup>7</sup>. Pre-World War II, Fleischner was a Professor of Radiology in Vienna, before moving to Boston where he eventually became a Professor at Harvard College.</p><h4>See also</h4><ul>
-<li>not to be confused with the <a href="/articles/fleischner-sign-tuberculosis-of-ileocaecal-junction">Fleischner sign (tuberculosis of ileocaecal junction)</a>-</li>- +<li><a href="/articles/fleischner-sign-tuberculosis-of-ileocaecal-junction">Fleischner sign (tuberculosis of ileocaecal junction)</a></li>
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