Cervicothoracic sign
Updates to Article Attributes
The cervicothoracic sign, a variation of the silhouette sign, helps refers to localizevisualisation of a mass inlesion above the superior mediastinum on frontal chest radiographs as either anterior or posteriorlevel of the clavicle, indicating the abnormality is located posteriorly.
As theThe anterior mediastinum ends at the level of the clavicles. Thus, the upper border of an anterior mediastinal lesion cannot be visualised extendingextend above the clavicles. Any lesionslesion with a discernible upper border above that level must be located posteriorly in the chest, i.e. apical segments of upper lobes, pleura, or posterior mediastinum 3.
History and etymology
Benjamin Felson (1913-1988) was an American radiologist who is believed to be the first to describe this sign.
-<p>The<strong> cervicothoracic sign</strong>, a variation of the <a href="/articles/silhouette-sign-x-rays">silhouette sign</a>, helps to localize a mass in the superior mediastinum on frontal chest radiographs as either anterior or posterior. </p><p>As the anterior mediastinum ends at the level of the <a href="/articles/clavicle">clavicles</a>, the upper border of an anterior mediastinal lesion cannot be visualised extending above the clavicles. Any lesions with a discernible upper border above that level must be located posteriorly in the chest, i.e. apical segments of upper lobes, pleura, or posterior mediastinum <sup>3</sup>.</p><h4>History and etymology</h4><p><strong><a href="/articles/benjamin-felson">Benjamin Felson</a></strong> (1913-1988) was an American radiologist who is believed to be the first to describe this sign.</p>- +<p>The<strong> cervicothoracic sign</strong>, a variation of the <a href="/articles/silhouette-sign-x-rays">silhouette sign</a>, refers to visualisation of a lesion above the level of the clavicle, indicating the abnormality is located posteriorly.</p><p>The anterior mediastinum ends at the level of the <a href="/articles/clavicle">clavicles</a>. Thus, the upper border of an anterior mediastinal lesion cannot extend above the clavicles. Any lesion with a discernible upper border above that level must be located posteriorly in the chest, i.e. apical segments of upper lobes, pleura, or posterior mediastinum <sup>3</sup>.</p><h4>History and etymology</h4><p><strong><a href="/articles/benjamin-felson">Benjamin Felson</a></strong> (1913-1988) was an American radiologist who is believed to be the first to describe this sign.</p>
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