Subacute Thyroiditis Following Third Dose of Pfizer-BioNTech COVID-19 (mRNA) Vaccine in a Patient with Clear Cell Renal Cell Carcinoma: A Case Report
- 1Division of Nephrology, Department of Medicine, Sultan Qaboos Comprehensive Cancer Care, Muscat, Oman
- 2Department of Medical Oncology, Sultan Qaboos Comprehensive Cancer Care, Muscat, Oman
- 3Department of Pharmacy, Sultan Qaboos Comprehensive Cancer Care, Muscat, Oman
Abstract
Over 160 cases of subacute thyroiditis (SAT) following COVID-19 vaccination or infection have been reported in the literature. Roughly one-half were attributed to either the first or second dose of the COVID-19 vaccine. We report a rare case of SAT in a 47-year-old male patient with a history of clear cell renal cell carcinoma and advanced chronic kidney disease, among other comorbidities, excluding thyroid disease. After he received the third dose of the Pfizer mRNA vaccine, a deranged thyroid profile was accidentally discovered. His SAT remained asymptomatic and normalized in about six months without treatment. SAT post-COVID vaccination is a self-limiting and rare condition that should be considered in the differential diagnosis of silent thyroiditis.
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BibTeX
@article{nagy2026subacute,
title = {{Subacute Thyroiditis Following Third Dose of Pfizer-BioNTech COVID-19 (mRNA) Vaccine in a Patient with Clear Cell Renal Cell Carcinoma: A Case Report}},
author = {Amro Nagy and Muhammad Yaqut and Doaa Abbas and Amna Mohamed},
journal = {Oman Medical Journal},
year = {2026},
month = jul,
doi = {10.5001/omj.2026.10},
url = {https://doi.org/10.5001/omj.2026.10},
note = {CC BY-NC},
}
RIS
TY - JOUR
TI - Subacute Thyroiditis Following Third Dose of Pfizer-BioNTech COVID-19 (mRNA) Vaccine in a Patient with Clear Cell Renal Cell Carcinoma: A Case Report
AU - Amro Nagy
AU - Muhammad Yaqut
AU - Doaa Abbas
AU - Amna Mohamed
PY - 2026
DA - 2026/07/01
JO - Oman Medical Journal
DO - 10.5001/omj.2026.10
UR - https://doi.org/10.5001/omj.2026.10
AB - Over 160 cases of subacute thyroiditis (SAT) following COVID-19 vaccination or infection have been reported in the literature. Roughly one-half were attributed to either the first or second dose of the COVID-19 vaccine. We report a rare case of SAT in a 47-year-old male patient with a history of clear cell renal cell carcinoma and advanced chronic kidney disease, among other comorbidities, excluding thyroid disease. After he received the third dose of the Pfizer mRNA vaccine, a deranged thyroid profile was accidentally discovered. His SAT remained asymptomatic and normalized in about six months without treatment. SAT post-COVID vaccination is a self-limiting and rare condition that should be considered in the differential diagnosis of silent thyroiditis.
SN - 1999-768X
SN - 2070-5204
ER -