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  • Title: Nailfold capillaroscopy findings of interstitial pneumonia with autoimmune features.
    Author: Lee SH, Min HK, Kim SH, Kim YW, Yoo KH, Kim HJ, Kim IA, Kim HR.
    Journal: Korean J Intern Med; 2023 Nov; 38(6):903-911. PubMed ID: 37488834.
    Abstract:
    BACKGROUND/AIMS: We evaluated nailfold capillaroscopy (NFC) of interstitial pneumonia with autoimmune features (IPAF) and compared it with that of patients with connective tissue disease-interstitial lung disease (CTD-ILD) and idiopathic interstitial pneumonia (IIP). METHODS: Patients with newly diagnosed as ILD were evaluated using NFC. Baseline demographic, clinical, serological, and high-resolution CT findings were collected. NFC was semi-quantitatively scored with six domains ranging from 0 to 18. In addition, the overall patterns (scleroderma/non-scleroderma patterns) were determined. RESULTS: A total of 81 patients (31 with CTD-ILD, 18 with IPAF, and 32 with IIP) were included. The non-specific interstitial pneumonia pattern was the most common ILD pattern in the CTD-ILD and IPAF groups, whereas the usual interstitial pneumonia pattern was the most common in the IIP group. The semi-quantitative score of the CTD-ILD group was higher than that of the IPAF or IIP groups (5.8 vs 4.2 vs 3.0, p < 0.001, respectively). Giant capillaries and haemorrhages were more frequently present in the CTD-ILD and IPAF groups than in the IIP group. A scleroderma pattern was present in 27.8% of the IPAF group, whereas none of the IIP patients showed a scleroderma pattern. CONCLUSION: NFC findings may be useful in classifying patients with ILD into CTD-ILD/IPAF/IIP.
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