Figure 2

Selected axial (A) and high resolution coronal (B) reformats from a non-contrast helical CT shows striking bilateral bulky hilar and mediastinal adenopathy. Mass-like fibrosis is encasing the hila and central bronchi causing traction bronchiectasis. There are several partially calcified hilar lymph nodes. There are also extensive perivascular and perilymphatic nodules throughout both lobes with relative sparing of the lower zones and right upper lobe bullae.