What is the role of CT and MRI in the workup of carcinoid tumor?

Updated: Feb 12, 2019
  • Author: Cameron K Tebbi, MD; Chief Editor: Max J Coppes, MD, PhD, MBA  more...
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Answer

GI series, CT, and MRI may be helpful in some situations.

  • For the diagnosis of chest tumors, CT combined with scintigraphy with octreotide is preferred.

  • In the large bowel, the disease is often detected with colonoscopy and does not provide an imaging challenge. Imaging diagnosis of small-bowel carcinoids is relatively difficult. Small tumors in this location are difficult to detect on upper-GI series and CT scans, and other techniques are required.

  • Mesenteric invasion and liver metastasis are often detected on CT scans. MRI can also be helpful in the diagnosis of hepatic disease but is less sensitive than CT in detection of extrahepatic lesions.


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