PMC5933474_01
Computed tomography scan showing a 2 cm mass (arrow) in the pancreaticoduodenal groove near D1-D2.
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Owing to some vague abdominal pain, she underwent a computed tomography scan that showed a 2 cm mass extending extrinsically from the pancreaticoduodenal groove (Fig. 1).
(a) H + E stain of the well-differentiated pancreatic neuroendocrine tumor at 20x power; (b) H + E stain of liver metastasis at 10x power; and (c) Gastrin stain (+) liver metastasis at 20x power. H+E, hematoxylin and eosin stain.
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The liver biopsy showed features similar to the PNET and stained positive by immunohistochemistry for gastrin (Fig. 2).