Rupture of small cystic pancreatic neuroendocrine tumor with many microtumors

Figure 1 Findings from computed tomography. A: Unenhanced computed tomography (CT) shows a 16 mm × 15 mm, somewhat obscure cystic lesion (red arrow) in the pancreatic tail; B: Contrast-enhanced CT shows an 18 mm × 17 mm cystic lesion (red arrow) with a well-defined, hyper-enhanced, thin peripheral rim and a 6-mm nodule during the arterial phase; C: The outer rim appears iso-enhanced compared to normal pancreatic parenchyma during the portal venous phases (red arrow).