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Tracheal Metastasis of Lung Cancer: CT Findings in Six Patients

Semin Chong1, Tae Sung Kim1 and Joungho Han2

1 Department of Radiology and Center for Imaging Science, Samsung Medical Center, Sungkyunkwan University School of Medicine, 50 Ilwon-dong, Gangnam-gu, Seoul 135-710, South Korea.
2 Department of Pathology, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul, South Korea.



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  		Fig. 1A —53-year-old man who had undergone right middle and lower lobectomy for squamous cell carcinoma 52 months earlier (patient 3 in Table 1). Chest CT scan shows 10-mm endotracheal nodule (arrow) in right lower posterolateral portion of trachea.

 


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  		Fig. 1B —53-year-old man who had undergone right middle and lower lobectomy for squamous cell carcinoma 52 months earlier (patient 3 in Table 1). Photomicrograph of transaxial section of gross specimen obtained from tracheal resection and anastomosis shows endotracheal polypoid nodule (arrows) with transmural growth. (H and E, x1)

 


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  		Fig. 1C —53-year-old man who had undergone right middle and lower lobectomy for squamous cell carcinoma 52 months earlier (patient 3 in Table 1). Photomicrograph of pathologic specimen reveals well-differentiated squamous cell carcinoma showing densely eosinophilic foci (arrows) corresponding to keratin pearl formation. (H and E, x200)

 


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  		Fig. 2A —60-year-old man who had undergone left upper lobectomy for adenocarcinoma 26 months earlier (patient 1). Chest CT scan shows 13-mm endotracheal nodule (arrow) in left upper posterolateral portion of trachea.

 


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  		Fig. 2B —60-year-old man who had undergone left upper lobectomy for adenocarcinoma 26 months earlier (patient 1). Photomicrograph of histopathologic specimen obtained from bronchoscopic biopsy shows adenocarcinoma forming acini (arrow) and micropapilla (arrowheads). (H and E, x200)

 


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  		Fig. 3A —68-year-old man who had undergone left upper lobectomy for squamous cell carcinoma 17 months earlier (patient 2). Chest CT scan shows eccentric thickening (arrow) of anterior midline portion of tracheal wall.

 


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  		Fig. 3B —68-year-old man who had undergone left upper lobectomy for squamous cell carcinoma 17 months earlier (patient 2). Photomicrograph of histopathologic specimen obtained from bronchoscopic biopsy shows nest of squamous cell carcinoma (arrowheads) in submucosal layer. Note normal overlying respiratory mucosa (arrows). (H and E, x100)

 

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