6
Diagnosis
Figure 1. High-Resolution CT Images Demonstrating a
Usual Interstitial Pneumonia Pattern
(A–C) Transverse CT section and (D) coronal reconstruction illustrating the presence of
honeycombing with subpleural and basal predominance. Note the concurrent presence of mild
groundglass opacity. (E) Magnified view of the le lower lobe showing typical characteristics of
honeycombing, consisting of clustered cystic airspaces with well-defined walls and variable diameters,
seen in single or multiple layers (arrows).
Figure 2. Probable UIP Pattern
(A–C) Transverse computed tomography (CT) section, (D) coronal reconstruction of both lungs, and
(E) magnified sagittal view of the right lower lobe illustrating the presence of a reticular pattern with
peripheral bronchiolectasis with subpleural and basal predominance. Depending on their orientation
relative to the plane of the CT section, peripheral traction bronchiolectasis appear as tubular (arrows)
or cystic (arrowheads) structures. Note the concurrent presence of mild ground-glass opacities in the
subpleural areas of both lungs and the absence of honeycombing. UIP was proven at histolog y.
A B C
D E
