1. Glomus tumor of the trachea
Yasser M Menaissy, MD, Anthony A Gal, MD, Kamal A Mansour, MD 
The Annals of Thoracic Surgery 
Volume 70, Issue 1, Pages (July 2000)
DOI: /S (00)

2. Fig 1
Computed tomography scan of the trachea shows a mass lesion in the posterior wall of the trachea, causing 50% occlusion of lumen and extending to vertebral column.
The Annals of Thoracic Surgery  , DOI: ( /S (00) )

3. Fig 2
Barium swallow study shows smooth indentation without invasion of the cervical esophagus.
The Annals of Thoracic Surgery  , DOI: ( /S (00) )

4. Fig 3
Representative low power magnification of tracheal glomus tumor demonstrating the tumor cells surrounded by prominent thick-walled blood vessels (hematoxylin and eosin, ×40). (Inset) Representative high power magnification of tracheal glomus tumor demonstrating a solid nested pattern of bland tumor cells (hematoxylin and eosin, ×40).
The Annals of Thoracic Surgery  , DOI: ( /S (00) )