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Tracheomalacia Incidentally Detected on CT Pulmonary Angiography of Patients with Suspected Pulmonary Embolism

Ichiro Hasegawa1,2, Phillip M. Boiselle1, Vassilios Raptopoulos1 and Hiroto Hatabu1

1 Department of Radiology, Beth Israel Deaconess Medical Center and Harvard Medical School, 330 Brookline Ave., Boston, MA 02215.
2 Present address: Department of Diagnostic Radiology, School of Medicine, Keio University, Tokyo, Japan.



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  		Fig. 1A. —Tracheomalacia in 88-year-old woman with shortness of breath. Axial CT scan shows normal trachea.

 


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  		Fig. 1B. —Tracheomalacia in 88-year-old woman with shortness of breath. Axial CT scan obtained at higher level shows excessive reduction in tracheal lumen, consistent with tracheomalacia.

 


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  		Fig. 2A. —Tracheomalacia in 68-year-old man with suspected pulomonary embolism or dissection on sonography. Axial CT scan shows trachea with minimal bowing of posterior wall.

 


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  		Fig. 2B. —Tracheomalacia in 68-year-old man with suspected pulomonary embolism or dissection on sonography. Axial CT scan obtained at level of aortic arch shows excessive reduction in tracheal lumen, consistent with tracheomalacia.

 


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  		Fig. 3A. —Tracheomalacia in 95-year-old woman with dyspnea. Axial CT scan shows normal trachea.

 


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  		Fig. 3B. —Tracheomalacia in 95-year-old woman with dyspnea. Axial CT scan obtained at higher level than A shows excessive reduction in tracheal lumen, consistent with tracheomalacia.

 


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  		Fig. 4A. —Tracheomalacia in 41-year-old man with desaturation seen on monitor after knee surgery. Axial CT scan shows excessive reduction in tracheal lumen, consistent with tracheomalacia.

 


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  		Fig. 4B. —Tracheomalacia in 41-year-old man with desaturation seen on monitor after knee surgery. Axial CT image obtained at level below carina shows collapsed bronchi bilaterally, consistent with bronchomalacia.

 


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  		Fig. 4C. —Tracheomalacia in 41-year-old man with desaturation seen on monitor after knee surgery. Axial CT image obtained at level of carina shows thickening of bilateral main bronchi on mediastinal window setting.

 

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