Fig. 3From: The role of lung ultrasound B-lines and serum KL-6 in the screening and follow-up of rheumatoid arthritis patients for an identification of interstitial lung disease: review of the literature, proposal for a preliminary algorithm, and clinical application to casesCase 2. A Physical examination showed polyarthritis of the hand joint. B Lung ultrasound revealed B-lines (arrow). C HRCT demonstrated ground glass opacity and interlobular septal thickening pattern located at the anterior segment of the right upper lobe (arrow)Back to article page