Multimodality management of a polyfunctional pancreatic endocrine carcinoma with markedly elevated serum vasoactive intestinal polypeptide and calcitonin levels

Pancreas
Aejaz NasirLarry Kvols

Abstract

We present an unusual case of a 52-year-old woman with severe, uncontrollable, refractory diarrhea attributable to pancreatic endocrine carcinoma (ECA) with markedly elevated serum vasoactive intestinal polypeptide (VIP) and calcitonin levels. After initial correction of fluid and electrolyte abnormalities, the patient was treated with high-dose octreotide. Shortly thereafter, due to the intractable nature of her diarrhea, she underwent cytoreductive hepatic surgery. The pancreatosplenectomy specimen showed a poorly differentiated ECA of the distal pancreas, immunoreactive for synaptophysin, CD56, and S100 protein, with morphologically similar hepatic and lymph node metastases. Postoperatively, her diarrhea improved, along with decline in serum VIP and calcitonin levels. Systemic chemotherapy with etoposide and cisplatin did not result in any radiographic and biochemical improvement. Having radiologically stable disease with depot-octreotide and short-acting octreotide (Sandostatin), she was subjected to peptide receptor radiotherapy with [177Lu-DOTA0,Tyr]octreotate (LuTate) that resulted in marked clinical and biochemical improvement, along with dramatic reduction in the number and size of hepatic metastases. In summary, this ...Continue Reading

References

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