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Shimizu H, Matsumoto H, Sasajima T, Suzuki T, Okubo Y, Fujita Y, Temmoku J, Yoshida S, Asano T, Ohira H, Ejiri Y, Migita K. New-onset dermatomyositis following COVID-19: A case report. Front Immunol 2022; 13:1002329. [PMID: 36353621 PMCID: PMC9637802 DOI: 10.3389/fimmu.2022.1002329] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 10/06/2022] [Indexed: 11/26/2022] Open
Abstract
Coronavirus disease 2019 (COVID-19) is an infectious disease caused by severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). Most of the infected individuals have recovered without complications, but a few patients develop multiple organ involvements. Previous reports suggest an association between COVID-19 and various inflammatory myopathies, in addition to autoimmune diseases. COVID-19 has been known to exacerbate preexisting autoimmune diseases and trigger various autoantibodies and autoimmune disease occurrence. Here we report a case of complicated COVID-19 with anti-synthetase autoantibodies (ASSs) presenting with skin rash, muscle weakness, and interstitial lung disease (ILD) and subsequently diagnosed with dermatomyositis (DM). A 47-year-old Japanese male patient without any previous history of illness, including autoimmune diseases, presented with a high fever, sore throat, and cough. Oropharyngeal swab for SARS-Cov-2 polymerase chain reaction tested positive. He was isolated at home and did not require hospitalization. However, his respiratory symptoms continued, and he was treated with prednisolone (20 mg/day) for 14 days due to the newly developing interstitial shadows over the lower lobes of both lungs. These pulmonary manifestations remitted within a week. He presented with face edema and myalgia 4 weeks later when he was off corticosteroids. Subsequently, he presented with face erythema, V-neck skin rash, low-grade fever, and exertional dyspnea. High-resolution computed tomography of the chest showed ILD. Biochemical analysis revealed creatine kinase and aldolase elevations, in addition to transaminases. Anti-aminoacyl tRNA synthetase (ARS) was detected using an enzyme-linked immunosorbent assay (170.9 U/mL) (MESACUP™ (Medical & Biological Laboratories, Japan), and the tRNA component was identified as anti-PL-7 and anti-Ro-52 antibodies using an immunoblot assay [EUROLINE Myositis Antigens Profile 3 (IgG), Euroimmun, Lübeck,Germany]. The patient was diagnosed with DM, especially anti- synthase antibody syndrome based on the presence of myositis-specific antibodies, clinical features, and pathological findings. The present case suggests that COVID-19 may have contributed to the production of anti-synthetase antibodies (ASAs) and the development of de novo DM. Our case highlights the importance of the assessment of patients who present with inflammatory myopathy post-COVID-19 and appropriate diagnostic work-up, including ASAs, against the clinical features that mimic DM after post-COVID-19.
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Affiliation(s)
- Hiroshi Shimizu
- Department of Gastroenterology, Fukushima Rosai Hospital, Iwaki, Japan
| | - Haruki Matsumoto
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tomomi Sasajima
- Department of Rheumatology, Fukushima Rosai Hospital, Iwaki, Japan
| | - Tomohiro Suzuki
- Department of Gastroenterology, Fukushima Rosai Hospital, Iwaki, Japan
| | - Yoshinori Okubo
- Department of Gastroenterology, Fukushima Rosai Hospital, Iwaki, Japan
| | - Yuya Fujita
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Jumpei Temmoku
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Shuhei Yoshida
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Tomoyuki Asano
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Hiromasa Ohira
- Department of Gastroenterology, Fukushima Medical University School of Medicine, Fukushima, Japan
| | - Yutaka Ejiri
- Department of Gastroenterology, Fukushima Rosai Hospital, Iwaki, Japan
| | - Kiyoshi Migita
- Department of Rheumatology, Fukushima Medical University School of Medicine, Fukushima, Japan
- *Correspondence: Kiyoshi Migita,
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