Diagnosis of insulinoma by endoscopic ultrasonography: A case report

C. D. Wang, C. S. Wang, L. S. Lee, J. J. Chang, L. Y. Liao, M. H. Liu, S. H. Lee, J. D. Liu, P. H. Chen, T. W. Huang

研究成果: 雜誌貢獻文章同行評審


A 51-year-old woman was hospitalized for episodic loss of consciousness over a one year period. The presence of insulinoma was indicated clinically and biochemically; but conventional ultrasonography (US) and computed tomography (CT) failed to reveal a tumor, thus surgical intervention was deferred. The patient was readmitted 3 years later with an increasing frequency of hypoglycemic episodes. Conventional US showed a suspicious, small, ill-defined hypoechoic mass in the pancreatic head. CT and selective angiography revealed equivocal results. Endoscopic ultrasonography (EUS) clearly demostrated a well-demarcated, echo-free mass, measuring 2x0.8 cm, in the head of the pancreas. Insulinoma was confirmed by surgical pathologic examination. These results indicate that the EUS provides a distinct advantage in pre-operative visualization of insulinomas.

頁(從 - 到)215-219
期刊Chinese Journal of Gastroenterology
出版狀態已發佈 - 1992

ASJC Scopus subject areas

  • 消化內科


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