Cervicothoracic sign

The cervicothoracic sign, a variant of the silhouette sign, is believed to have been coined by Benjamin Felson. It helps to discern the anterior or posterior location of a mass in the superior mediastinum on frontal chest radiographs. 

As the anterior mediastinum ends at the level of the clavicles, 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 3.


Chest x-ray
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Article Information:

rID: 19630
System: Chest
Section: Signs
Tags: sign, cases
Synonyms or Alternate Spellings:
  • Cervico-thoracic sign
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    Case 1: multinodular goitre
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    Case 2: ganglioneuroma
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