Abstract
: Solid pseudopapillary neoplasm (SPN) is an extremely rare pancreatic epithelial neoplasm with low malignancy that affects mainly young females. It is characterized by a good prognosis, even in the presence of metastases. SPNs have a particular avidity for 18F-fluorodeoxyglucose (18F-FDG). Nonetheless, there are very few papers in the literature on the use of 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F- FDG PET/CT) in the diagnosis and staging of SPNs. A 23-year-old woman presented to our attention with gastric outlet obstruction due to a bulky solid pseudopapillary neoplasm of the pancreatic head. A 18F-FDG PET/CT showed a marked 18F-FDG uptake at the pancreatic head with no abnormal metabolic activity in other abdominal organs. Given the particular avidity for 18F-FDG, SPNs can be easily recognized on 18F-FDG PET/CT. However, this exam is not useful in differentiating this neoplasm from other malignant pancreatic solid lesions, but it could give a contribution to the staging by the ability to identify potential metastases or recurrences.
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