Question:

Portal vein aneurysms may mimic which of the following:
1. Hepatic cyst
2. Solid mass
3. Neuroendocrine tumor of the pancreas
4. All of the above
5. None of the above





Answer:

The correct answer for the question "Portal vein aneurysms may mimic which of the following:" is:

4. All of the above



Explanation
a) Portal vein aneurysms may mimic a hepatic cyst. [As seen in case 2, this finding can mimic a cyst which is why color Doppler interrogation is imperative, demonstrating a non-pulsatile, monophasic waveform in the setting of portal vein aneurysm.]

b) Portal vein aneurysms may mimic a solid mass. [If thrombosed, the aneurysm may appear echogenic mimicking a solid mass.]

c) Portal vein aneurysms may mimic a neuroendocrine tumor. [Ultrasound is also useful in differentiating a portal vein aneurysm from a hypervascular pancreatic mass, which can be seen with neuroendocrine tumors or metastatic disease.]

d) All of the above statements are true and therefore d is the correct answer.

e) Answer choices a, b, and c are correct, therefore answer choice e is incorrect.



From the manuscript:
Portal Vein Aneurysms: A Case Series with Literature Review
Radiology Case. 2010 Jun; 4(6):28-38


This article belongs to the GI section.




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From the manuscript

Portal Vein Aneurysms: A Case Series with Literature Review

Free full text article: Portal Vein Aneurysms: A Case Series with Literature Review

Abstract
Portal vein aneurysms are a relatively uncommon entity and often an incidental, asymptomatic finding. Recognition of this finding can help to avoid potential confusion with abdominal masses of other etiologies. We would like to present four cases of portal vein aneurysms, and discuss the natural history, imaging findings, and treatment of this condition. One of the cases of portal vein aneurysm presented occurred after liver transplantation, which, to the best of our knowledge, has only been described once in the English-language literature.






References



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