1. Mediastinal Parathyroid Cysts
Ofer Landau, MD, Dean W Chamberlain, MD, Renee S Kennedy, MD, F.Griffith Pearson, MD, Shaf Keshavjee, MD 
The Annals of Thoracic Surgery 
Volume 63, Issue 4, Pages (April 1997)
DOI: /S (96)

2. Fig. 1
Patient 1. (A) Chest roentgenogram and (B) computed tomographic scan showing an upper mediastinal mass that causes the esophagus (small arrow) and trachea (large arrow) to deviate to the left. (C) Photomicrograph of the cyst wall showing no perceptible lining epithelium, though parathyroid epithelial tissue, mainly of the chief cell type, is prominent. (Hematoxylin and eosin; ×160 before 52% reduction.)
The Annals of Thoracic Surgery  , DOI: ( /S (96) )

3. Fig. 2
Patient 2. (A) Chest roentgenogram and (B) computed tomographic scan showing an upper mediastinal mass that causes the esophagus (small arrow) and the trachea (large arrow) to deviate to the right. (C) The cyst is lined by cuboidal epithelium, and parathyroid epithelial tissue is present in the cyst wall. This cyst contained less parathyroid tissue than the cyst in patient 1. (Hematoxylin and eosin; ×160 before 52% reduction.)
The Annals of Thoracic Surgery  , DOI: ( /S (96) )