PMC7732655_01
(A-C) Erythema around the nail and insignificant Gottron's signs can be seen on the patient's hands.
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F1
On March 2018, the patient was readmitted with aggravated cough and shortness of breath, as well as a rash on both hands, which resembled Gottron's signs (Figure 1).
(a1-a4) Pulmonary high-resolution CT (HRCT) 4 months before baseline showed interstitial inflammatory changes in the lungs. (b1-b4) Pulmonary HRCT of baseline showed that the pulmonary interstitial inflammatory changes were more serious than before, mediastinal and subcutaneous emphysema appeared, and diffuse ground-glass shadows were seen in both lung fields. (c1-c4) Pulmonary HRCT reexamination on 4 months after the patient was discharged from our hospital showed that the diffused ground-glass shadows were less than those on March 2018, and mediastinal and subcutaneous emphysema were significantly absorbed. (d1-d4) Pulmonary HRCT on 9 months after the patient was discharged from our hospital showed that the lungs were much better than on March 2018. (e1-e4) More than 2 years later after the patient was discharged from our hospital, pulmonary HRCT showed lesser ground-glass shadows, and her lungs were much better than before.
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F2
Pulmonary HRCT scans taken on 4, 9, and 26 months after her discharge from our hospital showed that the interstitial pneumonitis had significantly improved, and mediastinal and subcutaneous emphysema had been gradually absorbed (Figure 2).