Abstract
A 35-year-old man was found to have a tumor in the pancreas by ultrasonography. This was a solid and smooth margin tumor that was slightly enhanced in CT, and demonstrated low intensity on T1-weighted (WI), slightly high intensity on T2WI and high intensity on diffusion WI MRI. Positron emission computed tomography (PET) demonstrated a high uptake tumor with a maximum index of 4.9. This was diagnosed as pancreatic cancer and removed surgically. Histological diagnosis was a solid-pseudopapillary tumor (SPT). SPT usually affects young women and has several typical features. In this case, diagnosis was difficult because of atypical findings and high uptake in PET. In the future, smaller pancreatic tumors will be detected according to the progress in radiographic studies, and therefore the detection of small SPTs will increase. PET is useful but the findings of SPT have not been reported so much. We report an atypical SPT case and the difficulty of pre-operative diagnosis, especially with PET.
