An Unexpected Mediastinal Fibrosis Case Detected and Evaluated of Treatment Response With 18F-FDG PET/CT.

Akgun, Elife; Kaya, Meryem · Clin Nucl Med · 2025

case_report · Level V

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Abstract

IgG4-releated disease is systemic fibroinflammatory disease characterized by infiltration of IgG4-positive plasma cells in the affected tissue. Mediastinal fibrosis, which is also known as fibrosing mediastinitis, is a rare form of IgG4-releated disease. We present a case of mediastinal and retroperitoneal fibrosis in 52-year-old man who was detected with increased radiopharmaceutical uptake in 18F-FDG PET/CT imaging.

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