The double artery sign refers to the appearance of a non-dilated mucus-filled bronchus adjacent to a pulmonary artery producing the appearance of a "double artery" on CT chest. This sign is considered a feature of a central endobronchial lesion such as a mucus plug or neoplasm.
- 1. Theriault M, Eddy K, Borgaonkar J, Babar J, Manos D. Diseases Involving the Central Bronchi: Multidetector CT for Detection, Characterization, and Differential Diagnosis. Radiographics: a review publication of the Radiological Society of North America, Inc. 38 (1) 2018
- 2. Theriault M, Manos D. The Double Artery Sign. Journal of Thoracic Imaging. 32(2):W3, MAR 2017