Hypoglycemia CT

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohammed Abdelwahed M.D[2]

Overview

  • Ultrasound, Computed tomography and MRI can differentiate between insulinoma and islet-cell hypertrophy.

CT

  • Hypoglycemia caused by endogenous insulin the differential diagnosis includes insulinoma and islet-cell hypertrophy.
  • Ultrasound, Computed tomography and MRI can differentiate between both.[1]
  • A negative imaging study does not exclude insulinoma and patient need more tests.
  • CT shows hyperattenuating on arterial phase so arterial or pancreatic phase imaging may aid in better detection. Some may show calcification.[2]

CT showing insulinoma Case courtesy of Dr Maxime St-Amant, <a

References

  1. Noone TC, Hosey J, Firat Z, Semelka RC (2005). "Imaging and localization of islet-cell tumours of the pancreas on CT and MRI". Best Pract Res Clin Endocrinol Metab. 19 (2): 195–211. doi:10.1016/j.beem.2004.11.013. PMID 15763695.
  2. King AD, Ko GT, Yeung VT, Chow CC, Griffith J, Cockram CS (1998). "Dual phase spiral CT in the detection of small insulinomas of the pancreas". Br J Radiol. 71 (841): 20–3. doi:10.1259/bjr.71.841.9534694. PMID 9534694.