Insulinoma CT
Insulinoma Microchapters |
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Insulinoma CT On the Web |
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Parminder Dhingra, M.D. [2]
Overview
There are no CT scan findings associated with [disease name].
OR
[Location] CT scan may be helpful in the diagnosis of [disease name]. Findings on CT scan suggestive of/diagnostic of [disease name] include [finding 1], [finding 2], and [finding 3].
OR
There are no CT scan findings associated with [disease name]. However, a CT scan may be helpful in the diagnosis of complications of [disease name], which include [complication 1], [complication 2], and [complication 3].
CT scan
Sensitivity of CT scan for diagnosing insulinoma is 33-64%.[1]Most insulinomas are smaller,<1.3 cm (50%) and many of these are non contour forming. therefore CT scan is less effective in diagnosing them than MRI.[2][3]
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Insulinoma-Case courtesy of Dr. Bruno Di Muzio, Radiopaedia.org, rID: 21569
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Insulinoma-Case courtesy of Dr. Mustafa Hammad, Radiopaedia.org, rID: 47669
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Metatstatic Insulinoma-Case courtesy of Dr. Maxime St-Amant, Radiopaedia.org, rID: 19080
- Abdominal Contrast enhanced CT(CECT) scan may be helpful in the diagnosis of insulinoma. Findings on CT scan suggestive of insulinoma include[1]:
- greater degree of enhancement than parenchyma of the rest of pancreas(as its hypervascular)during the vascular phases of the contrast
- atypically can appear hypovascular and hypodense lesions after the administration of contrast, as compared to hyperdense lesions before the administration; cystic masses, and calcified masses(in malignant lesions when they are nodular and discrete)[2][3]
References
- ↑ 1.0 1.1 Okabayashi T, Shima Y, Sumiyoshi T, Kozuki A, Ito S, Ogawa Y, Kobayashi M, Hanazaki K (2013). "Diagnosis and management of insulinoma". World J. Gastroenterol. 19 (6): 829–37. doi:10.3748/wjg.v19.i6.829. PMC 3574879. PMID 23430217.
- ↑ 2.0 2.1 McAuley G, Delaney H, Colville J, Lyburn I, Worsley D, Govender P; et al. (2005). "Multimodality preoperative imaging of pancreatic insulinomas". Clin Radiol. 60 (10): 1039–50. doi:10.1016/j.crad.2005.06.005. PMID 16179163.
- ↑ 3.0 3.1 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.