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Can Coronavirus Disease 2019 Induce Sarcoidosis: A Case Report
Hajer Racil1, Tasnim Znegui1, Sarra Maazoui1
1Department of Pulmonology and Interventional Endoscopy, Abderrahman Mami Hospital, Ariana, Tunisia.
A rare case of pulmonary mediastinal sarcoidosis developed after coronavirus disease 2019. This finding suggests a potential link between COVID-19 and sarcoidosis, warranting further investigation into post-viral inflammatory responses.
Area of Science:
- Pulmonology
- Immunology
- Infectious Diseases
Background:
- Coronavirus disease 2019 (COVID-19) can cause various post-viral complications, including autoimmune and inflammatory disorders.
- A direct causal link between COVID-19 and subsequent sarcoidosis remains unestablished.
Purpose of the Study:
- To report a rare case of pulmonary mediastinal sarcoidosis that manifested after a COVID-19 infection.
- To highlight the potential association between COVID-19 and the development of sarcoidosis.
Main Methods:
- Case report of a 41-year-old woman presenting with respiratory symptoms months after COVID-19 recovery.
- Diagnostic procedures included chest CT scans, bronchoalveolar lavage, endobronchial lung biopsy, and sputum culture.
- Treatment involved oral corticosteroids.
Main Results:
- Chest imaging revealed evolving pulmonary micronodules and significant hilar/mediastinal lymphadenopathy post-COVID-19.
- Bronchoalveolar lavage showed lymphocytosis with an elevated CD4/CD8 T cell ratio (2.2).
- Histopathology confirmed noncaseating epithelioid granulomas, leading to a diagnosis of pulmonary-mediastinal sarcoidosis.
Conclusions:
- Post-COVID-19 sarcoidosis is an exceptionally rare clinical entity.
- The findings suggest a possible association between COVID-19 infection and the onset of sarcoidosis.
- Further research is necessary to elucidate the potential pathogenetic mechanisms linking these conditions.
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