Figure 1

Variations in size of primary pancreatic NET. A: Insulinoma presenting as an occult nodule on the pancreas. Functional pancreatic NET may present at an early stage, and identification of the primary tumor may be challenging. B. Non-functioning pancreatic NET in the tail of the pancreas with associated hepatic metastases. Non-functioning pancreatic NET more typically present at a later stage, often as bulky lesions in the tail of the pancreas with associated liver metastases.