CT Scleroderma Obliterative Bronchiolitis

39-year-old-male with a history of scleroderma associated with ILD and digital vasculopathy with ulcers.

Coronal CT shows thickening of the segmental and subsegmental airway supplying the lateral basal segment of the left lower lobe. In addition there is a background of peripheral ground glass changes poorly defined ground glass centrilobular nodules and mild reticulation.
In this clinical setting obliterative bronchiolitis (aka bronchiolitis obliterans aka constrictive bronchiolitis) is suggested. Cellular NSIP is also a radiological consideration.

Ashley Davidoff MD TheCommonVein.net 132Lu 136669c