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Peer-reviewed veterinary case report

Dog insulinoma tumor diagnosed with special imaging scan

By Lester, N V et al.·Published in Veterinary radiology & ultrasound : the official journal of the American College of Veterinary Radiology and the International Veterinary Radiology Association·1999·Department of Small Animal Clinical Sciences, United States·View original on PubMed

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Original publication title: Scintigraphic diagnosis of insulinoma in a dog.

Species:
dog

Plain-English summary

An 8-year-old male Irish Setter was brought to the vet with symptoms suggesting a pancreatic tumor called insulinoma, which causes excessive insulin production. To diagnose it, the vet used a special imaging test that showed a mass near the dog's pancreas. During surgery, they found and removed the tumor along with a nearby lymph node that had cancer spread. Thankfully, the dog recovered well from the surgery and was doing fine fourteen months later.

People also search for: dog insulinoma symptoms · Irish Setter pancreatic tumor treatment · dog surgery recovery time

Abstract

Diagnosis of insulin-secreting tumors of the pancreas can usually be made on the basis of endocrine testing and exclusion of other causes of hyperinsulinism. In dogs, these tumors have a poor long-term prognosis due to a high rate of metastases and recurrence; staging (and therefore prognosticating) is difficult and usually done at the time of surgery. The purpose of this article is to describe a canine patient with an insulinoma, discuss the diagnostic imaging options for tumor evaluation and mention future directions for therapy. Insulinoma was suspected in an 8-year-old intact male Irish Setter. Somatostatin receptor scintigraphy using indium In-111 pentetreotide was performed and an area of increased radiopharmaceutical accumulation was found craniomedial to the right kidney. At surgery a small mass lesion in the pancreas and a larger, closely associated mass involving a mesenteric lymph node were removed. Histopathology confirmed the diagnosis of insulinoma with regional lymph node metastasis. The dog recovered from surgery and remained normal fourteen months later.

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Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/10225531/