On HRCT, a UIP pattern is characterized by the following features: 1) subpleural, basal predominance, 2) reticular abnormality, and 3) honeycombing. Typically, honeycombing occurs as clustered air ...

Lung ultrasound is effective for detecting ILD in RA patients, with high sensitivity and moderate specificity. B-lines are a primary criterion for ILD diagnosis in LUS, indicating pulmonary ...