Solitary Fibrous Tumor Of The Pancreas Clinically Mimicking A Pancreatic Neuroendocrine Tumor: Cytologic Pitfalls When A Transgastric Approach Is Utilized

Solitary fibrous tumor (SFT) involving the pancreas is a rare entity often diagnosed on surgical specimens rather than cytology samples. Pancreatic SFT frequently mimics pancreatic neuroendocrine tumor radiographically, which presents unique challenges to the cytologist during rapid on-site assessment. We describe a case of pancreatic SFT with a focus on the cytologic pitfalls that might be encountered during transgastric procedures. We also review the available cytologic findings of prior pancreatic SFT cases.