Intense FDG Activity of Renal Granuloma Following Intravesical Bacillus Calmette-Guérin Therapy for Bladder Cancer Mimicking Malignancy.
case_report · Level V
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- Record sourced from PubMed, PMID 40263758.
- Also identified by DOI 10.1097/RLU.0000000000005810.
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Abstract
Intravesical bacillus Calmette-Guérin (BCG) therapy is an effective immunotherapy for superficial bladder cancer. BCG-related infectious complications may occur following intravesical BCG instillation. We describe contrast-enhanced CT, FDG PET/CT, and delayed abdominal FDG PET/MRI findings in a case of BCG-related renal granulomas following intravesical BCG therapy for bladder cancer. The renal lesions showed ill-defined margins with progressive enhancement on postcontrast CT, hypointensity on T2-weighted images, and variable FDG activity on both PET/CT and delayed PET/MRI. This case indicates that BCG-related renal granuloma should be included in the differential diagnosis of FDG-avid renal lesions in patients with BCG therapy for bladder cancer.
Medical subject headings
- BCG Vaccine
- Fluorodeoxyglucose F18
- Granuloma
- Kidney Diseases
- Urinary Bladder Neoplasms