1. Idiopathic tracheal and bronchial stenosis in two pediatric patients
Emma Beddow, FRCS, Eng, Alexander J Rice, MD, Mary N Sheppard, FRCPath, Peter Goldstraw, FRCS 
The Annals of Thoracic Surgery 
Volume 77, Issue 5, Pages (May 2004)
DOI: /j.athoracsur

2. Fig 1
Thickening of mucosa by dense fibro-inflammatory tissue with surface ulceration. (Hematoxylin & eosin; ×40 original magnification.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

3. Fig 2
Bland fibroblasts in dense collagenous stroma (Hematoxylin & eosin; ×200 original magnification.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )