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Prominent collateral vein in portal hypertension mimicking liver tumours: a pitfall in computed tomography
The British Journal of Radiology
|June 1, 1987
Insights
Prominent collateral veins in patients with portal hypertension can be mistaken for liver tumors on non-contrast CT scans. Dynamic CT and MRI are valuable for accurate diagnosis in these cases.
Area of Science:
- Radiology
- Hepatology
- Medical Imaging
Background:
- Portal hypertension is a serious complication of liver disease.
- Porto-systemic collateral veins develop to decompress elevated portal pressure.
- Accurate identification of these vessels is crucial for patient management.
Observation:
- Computed tomography (CT) was performed on four patients with prominent porto-systemic collateral veins.
- Three of these patients had an enlarged para-umbilical vein.
- A potential diagnostic pitfall was identified in non-contrast CT scans.
Findings:
- Prominent collateral veins can mimic liver tumors on non-contrast CT.
- This misinterpretation can lead to unnecessary investigations and patient anxiety.
- Careful interpretation of imaging is required in patients with known or suspected portal hypertension.
Implications:
- Awareness of this imaging pitfall is essential for radiologists.
- Dynamic CT and magnetic resonance imaging (MRI) can help differentiate collateral veins from tumors.
- Improved diagnostic accuracy can lead to better patient outcomes and reduced healthcare costs.
Abstract:
Computed tomography (CT) was performed on four patients with a prominent porto-systemic collateral vein, including three with an enlarged para-umbilical vein. We have observed a pitfall in non-contrast CT scans of patients with portal hypertension, in which a prominent collateral vein may mimic a liver tumour. Dynamic CT as well as magnetic resonance imaging is of great value in such cases.