IgG4 related pleural disease : recurrent pleural effusion after COVID-19 vaccination

Tasnim, Saria and Al-Jobory, Ola and Hallak, Ahmad and Bharadwaj, Taru and Patel, Manish (2022) IgG4 related pleural disease : recurrent pleural effusion after COVID-19 vaccination. Respirology Case Reports, 10 (10). e01026. ISSN 2051-3380 (https://doi.org/10.1002/rcr2.1026)

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Abstract

IgG4-related disease is characterized by a systemic fibroinflammatory process associated with substantial infiltration by plasma cells with IgG4 in the organs. Our patient presented with pleural effusion, and was diagnosed with IgG4-related lung disease (IgG4-RLD) after he received two doses of the Pfizer COVID-19 vaccine. The patient developed dyspnea and hypoxia 2 weeks after receiving the second dose of the Pfizer COVID-19 vaccine. CT scan revealed left pleural effusion which was drained. However, the effusion recurred requiring thoracoscopic drainage, placement of an indwelling catheter, and decortication with biopsy. IgG4 serum level was 268 mg/dl and pathology revealed pleural fibrosis, lymphoplasmacytic infiltrates, and increased IgG4-positive plasma cells with no malignant cells leading to a diagnosis of IgG4-RLD. Although COVID vaccine-related IgG4-RLD is a novel finding, having a high degree of suspicion following vaccination is always important for early diagnosis and effective treatment.

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