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Renal artery aneurysm mimicking a solid parenchymal lesion.
V Vitale1, M Di Serafino2, G Vallone3
1Department of Radiology, Ospedale Universitario Federico II, Naples, Italy.
Journal of Ultrasound
|January 17, 2014
Summary
A small renal mass was initially detected via ultrasound. Further imaging confirmed it was an intrarenal artery aneurysm, a rare finding in the kidney. The patient is stable under monitoring.
Area of Science:
- Nephrology
- Vascular Surgery
- Radiology
Background:
- Renal masses require thorough investigation to differentiate benign from malignant conditions.
- Intrarenal artery aneurysms are uncommon vascular anomalies that can present as renal masses.
- Abdominal pain can be a symptom prompting the investigation of renal abnormalities.
Purpose of the Study:
- To report a case of a renal mass initially detected by ultrasound.
- To highlight the diagnostic process for identifying an intrarenal artery aneurysm.
- To discuss the management and outcome of a patient with this rare condition.
Main Methods:
- Initial renal mass detection using abdominal ultrasound (US).
- Further characterization with color Doppler US to assess blood flow.
- Confirmatory imaging including computed tomography (CT) scanning and magnetic resonance imaging (MRI).
Main Results:
- Ultrasound revealed an oval, hypoechoic renal mass (20 mm) near the left renal sinus with peripheral blood flow.
- Advanced US demonstrated intralesional blood flow, suggesting an aneurysm.
- CT and MRI confirmed the diagnosis of an intrarenal artery aneurysm.
Conclusions:
- Intrarenal artery aneurysms can mimic renal masses on initial imaging.
- A combination of US, CT, and MRI is crucial for accurate diagnosis.
- Conservative management with monitoring may be appropriate for asymptomatic or stable intrarenal aneurysms.
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