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Published on: June 16, 2020
An atypical case of IgG4-related sclerosing pancreatitis on PET/CT imaging
1From the *Departments of Nuclear Medicine and †Pathology, Zhongshan Hospital, Fudan University, Shanghai, China.
Abstract:
A 62-year-old man presented with pain in the upper abdomen persisting for 2 months. He had the clinical history of diabetes for approximately 10 years. CT and MRI showed a mass located in processus uncinatus of caput pancreatis. The laboratory tests, including pancreas-originated amylase, tumor marker, IgG, IgG4, and so on, were normal. For suspicion of pancreatic cancer, the patient underwent F-FDG PET/CT, which demonstrated focal and high radioactivity accumulation in processus uncinatus of pancreas, without extrapancreatic radioactivity uptake observed. Finally, the surgical pathology confirmed IgG4-related sclerosing pancreatitis.
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