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Benign Abnormalities and Carcinoid Tumors of the Central Airways

Diagnostic Impact of CT Bronchography

Gilbert R. Ferretti1, Frédéric Thony1, Jean-Luc Bosson2, Christophe Pison3, François Arbib3 and Max Coulomb1

1 Department of Radiology, Hôpital Michallon, Centre Hospitalier Universitaire, Grenoble BP 217, F-38043 Grenoble Cedex 09, France.
2 Department of Statistics, Hôpital Michallon, Centre Hospitalier Universitaire, Grenoble, Cedex 09, France.
3 Department of Respiratory Disease, Hôpital Michallon, Centre Hospitalier Universitaire, Grenoble Cedex 09, France.



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  		Fig. 1A. —33-year-old woman with chronic cough. Axial CT scan shows right tracheal bronchus (arrow).

 


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  		Fig. 1B. —33-year-old woman with chronic cough. CT bronchogram shows bronchus arising from right lateral wall of trachea (straight arrow) proximal to carina (curved arrow), corresponding to axial CT findings seen in A.

 


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  		Fig. 1C. —33-year-old woman with chronic cough. Axial CT scan shows bronchus (arrow) arising from right main bronchus.

 


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  		Fig. 1D. —33-year-old woman with chronic cough. CT bronchogram shows bronchus arising from external wall of right main bronchus (arrow) just proximal to carina (curved arrow), corresponding to axial CT findings seen in C. (Both observers missed second right tracheal bronchus in C and D.)

 


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  		Fig. 1E. —33-year-old woman with chronic cough. Axial CT scan shows right upper lobe bronchus (arrow).

 


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  		Fig. 1F. —33-year-old woman with chronic cough. CT bronchogram shows origin of right upper lobe bronchus (arrow), corresponding to axial CT findings seen in E.

 


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  		Fig. 2A. —24-year-old woman who attempted suicide by ingestion of acid. Bronchoscopy showed necrosis of posterior wall of trachea with tracheal ulceration and necrosis of carina. Note that on CT bronchoscopy, posterior aspect of trachea is at top of image because observers look at trachea from above. Axial CT scan shows ulceration of posterior wall of trachea (arrow).

 


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  		Fig. 2B. —24-year-old woman who attempted suicide by ingestion of acid. Bronchoscopy showed necrosis of posterior wall of trachea with tracheal ulceration and necrosis of carina. Note that on CT bronchoscopy, posterior aspect of trachea is at top of image because observers look at trachea from above. Axial CT scan shows irregular shape of posterior wall of trachea (arrow).

 


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  		Fig. 2C. —24-year-old woman who attempted suicide by ingestion of acid. Bronchoscopy showed necrosis of posterior wall of trachea with tracheal ulceration and necrosis of carina. Note that on CT bronchoscopy, posterior aspect of trachea is at top of image because observers look at trachea from above. Axial CT scan shows carina with transverse ulceration (arrow).

 


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  		Fig. 2D. —24-year-old woman who attempted suicide by ingestion of acid. Bronchoscopy showed necrosis of posterior wall of trachea with tracheal ulceration and necrosis of carina. Note that on CT bronchoscopy, posterior aspect of trachea is at top of image because observers look at trachea from above. CT bronchogram shows ulceration of posterior wall of trachea (arrow).

 


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  		Fig. 2E. —24-year-old woman who attempted suicide by ingestion of acid. Bronchoscopy showed necrosis of posterior wall of trachea with tracheal ulceration and necrosis of carina. Note that on CT bronchoscopy, posterior aspect of trachea is at top of image because observers look at trachea from above. CT bronchogram shows transverse ulceration of carina (arrow) more obviously than axial CT scan (C).

 


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  		Fig. 3A. —30-year-old man with dyspnea. Bronchoscopy shows carcinoid tumor of left main bronchus. Axial CT scan shows tumor (arrow) arising from posterior wall of left main bronchus.

 


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  		Fig. 3B. —30-year-old man with dyspnea. Bronchoscopy shows carcinoid tumor of left main bronchus. CT bronchogram shows polypoid tumor (arrow) obstructing left main bronchus.

 

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