1. Anterior Mediastinal Bone-Eroding Mass With Disseminated Lung Lesions
Roopa Siddaiah, MBBS, Mark Weinblatt, MD, Jon Roberts, MD, FCCP, Mary Cataletto, MD, FCCP 
CHEST 
Volume 140, Issue 5, Pages (November 2011)
DOI: /chest
Copyright © 2011 The American College of Chest Physicians Terms and Conditions

2. Figure 1
Plain chest radiographs demonstrate nodular densities of the bilateral lung fields with mediastinal widening (arrows). A, Posteroanterior view. B, Left lateral view.
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Copyright © 2011 The American College of Chest Physicians Terms and Conditions

3. Figure 2
A, Axial CT image of the thorax with IV contrast shows marked compression on the left brachiocephalic vein. Paratracheal adenopathy is also noted (white arrow). B, View in bone window shows a relatively large, heterogenous soft tissue mass that has eroded the posterior wall of the manubrium (black arrows in A and B).
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Copyright © 2011 The American College of Chest Physicians Terms and Conditions

4. Figure 3
Axial and coronal lung windows show multiple small and predominantly peripheral cavitary pulmonary nodules (arrows). A, Axial window. B, Coronal lung window.
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Copyright © 2011 The American College of Chest Physicians Terms and Conditions

5. Figure 4
Image of the distal right femur shows a scalloping lytic lesion with a sclerotic border in the right medial metaphysis.
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Copyright © 2011 The American College of Chest Physicians Terms and Conditions

6. Figure 5
A, Cellular infiltrate consisting of Langerhans cells showing irregular nuclei with nuclear grooves admixed with eosinophils (hematoxylin-eosin, original magnification ×400). B, Immunohistochemical stain for CD1a (original magnification ×400).
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Copyright © 2011 The American College of Chest Physicians Terms and Conditions