Table 3 High-resolution computed tomography criteria for uip pattern [2]
UIP Pattern (All Four Features) | Possible UIP Pattern (All Three Features) | Inconsistent with UIP Pattern (any of the Seven Features) |
|---|---|---|
â– Subpleural, basal predominance | â– Subpleural, basal predominance | â– Upper or mid-lung predominance |
â– Reticular abnormality | â– Reticular abnormality | â– Peribronchovascular predominance |
â– Honeycombing with or without traction bronchiectasis | â– Absence of features listed as inconsistent with UIP pattern (see third column) | â– Extensive ground glass abnormality (extent >reticular abnormality) |
â– Absence of features listed as inconsistent with UP | Â | â– Profuse micronodules (bilateral, predominantly upper lobes) |
| Â | Â | â– Discrete cysts (multiple, bilateral, away from areas of honeycombing) |
| Â | Â | â– Diffuse mosaic attenuation/air-trapping (bilateral in three or more lobes) |
| Â | Â | â– Consolidation in bronchopulmonary segment(s)/lobe(s) |