Cholangiocarcinoma CT

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

## Overview

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On CT scan, cholangiocarcinoma is characterized by homogeneously low in attenuation and demonstrate heterogeneous minor peripheral enhancement with gradual enhancement centrally. Capsular retraction may be observed.

## CT scan

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* Abdominal CT scan may be helpful in the diagnosis of cholangiocarcinoma. Findings on CT scan suggestive of cholangiocarcinoma include:[1][2]
* Capsular retraction
* Dilation of bile ducts distal to the mass
* Narrowing of the portal veins or hepatic veins
* Lobar or segmental hepatic atrophy associated with vascular invasion

Ct scan showing Cholangiocarcinoma Source:Case Case courtesy of Dr Ian Bickle, Radiopaedia.org, rID: 49009[3]

## References

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1. ↑ Han, Joon Koo; Choi, Byung Ihn; Kim, Ah Young; An, Su Kyung; Lee, Joon Woo; Kim, Tae Kyung; Kim, Sun-Whe (2002). "Cholangiocarcinoma: Pictorial Essay of CT and Cholangiographic Findings". RadioGraphics. 22 (1): 173–187. doi:10.1148/radiographics.22.1.g02ja15173. ISSN 0271-5333.
2. ↑ Vilgrain V (2008). "Staging cholangiocarcinoma by imaging studies". HPB (Oxford). 10 (2): 106–9. doi:10.1080/13651820801992617. PMC 2504386. PMID 18773065.
3. ↑ "Cholangiocarcinoma | Radiology Case | Radiopaedia.org".

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