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Arch Surg. 2005;140:312.

	Since this article does not have an abstract, we have provided the first 150 words of the full text and any section headings.

Answer: Papillary Low-Grade Neuroendocrine Tumor of the Pancreas With Pancreatic Duct Dilation

Figure 1. Axial magnetic resonance image of the abdomen demonstrating large pancreatic ductal dilation without obvious mass.

Figure appears in full text version. Figure 1.

Figure 2. Intraoperative photograph demonstrating an enlarged main pancreatic duct (black arrows) and enlarged peripheral pancreatic ducts (white arrows).

Figure appears in full text version. Figure 2.

Prominent pancreatic duct dilation with a mass lesion within the head of the pancreas has been found to represent a primary adenocarcinoma of the pancreas in most patients. These patients are also found to have concomitant biliary dilation. Isolated significant (>2-cm) pancreatic ductal dilation has been demonstrated to occur more commonly in mucin-producing lesions of the pancreas and primarily in intraductal papillary mucinous tumors of the pancreas.¹

Neuroendocrine lesions of the pancreas represent 0.5% of all pancreatic tumors.² Approximately one third of neuroendocrine tumors are hormonally inactive and account for about 20% of all endocrine tumors of the pancreas.³ Histochemically, they are identified as insulin (50% of cases), . . . [Full Text of this Article]

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Arch Surg. 2005;140(3):311-312.
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