Pancreatic Malignancy or Not?: Role of 18F-FDG PET/CT in Solving the Diagnostic Dilemma and Evaluating Treatment Response

Immunoglobulin G4–related disease is an autoimmune entity with multisystem involvement. 18F-FDG PET/CT can provide important information about disease extent and severity and also aid in treatment response evaluation. We report a case of a 57-year-old woman presenting with abdominal discomfort, belching, and loss of weight in whom 18F-FDG PET/CT provided valuable information in diagnosis and monitoring treatment response.

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