A 57-year-old man presented with a 16-month history of nonspecific upper abdominal pain and a 15.75-kg weight loss. Workup included magnetic resonance imaging (Figure 1) and intraoperative findings (Figure 2) that demonstrated a small (1.4-cm) hypervascular lesion within the head of the pancreas with marked pancreatic duct dilation.
A. Pancreatic adenocarcinoma
B. Chronic focal pancreatitis
C. Intraductal pancreatic mucinous neoplasm
D. Intraductal neuroendocrine neoplasm