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Revista Española de Enfermedades Digestivas

Print version ISSN 1130-0108


PRIEGO, P. et al. Diagnosis and treatment of pancreatic insulinoma. Rev. esp. enferm. dig. [online]. 2007, vol.99, n.4, pp.218-222. ISSN 1130-0108.

Introduction: insulinoma is the most frequent pancreatic endocrine tumor. Its preoperative diagnosis has been controversial for many years. The aim of this study was to evaluate the experience in the management and treatment of this kind of tumor at Hospital Ramón y Cajal. Material and methods: between January 1999 and July 2006, 12 patients were operated on in our hospital (9 females and 3 males) who had been diagnosed with insulinoma, with a mean age of 56 years (16-72 years). Results: octreotide scintigraphy allowed a diagnosis in 33.3% of cases, abdominal CT in 83.3%, and echoendoscopy in 100%. Intraoperative ultrasonography confirmed the presence of an insulinoma in 100% of cases. In all cases a complete excision was possible, with 9 enucleations and 3 distal pancreatectomies. Two patients developed a pancreatic fistula, and one a pancreatic pseudocyst that healed spontaneously without surgery. The overall cure rate was 100%. After a mean follow-up of 48 months no recurrences have been reported. Conclusion: in our experience, we consider advisable that abdominal CT and echoendoscopy be performed before surgery. However, the initial procedure of choice would be pancreas palpation and intraoperative ultrasonography. Surgery cured 100% of cases, and the procedure selected depends on size, location, distance from the main pancreatic duct, and relation to multiple endocrine neoplasm 1 (MEN-1).

Keywords : Insulinoma; Pancreatic endocrine tumor; Intraoperative ultrasonography; Echoendoscopy.

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