A case of asymptomatic aneurysm of spontaneous portosystemic venous fistula (SPVF) with the radiologic findings is described.

Although advances and more widespread use of ultrasound (US) and computed tomography angiography (CTA) have enabled more detection of SPVF in the liver, it is a rare entity.

A 49-year-old male was referred to our hospital's nephrology outpatient clinic due to hypertension. Abdominal sonography examination detected a well-defined cystic lesion adjacent to the middle hepatic vein in the liver. The lesion showed venous flow in the color Doppler US examination. Computed tomography angiography examination revealed an aneurysm of the fistula.

Radiologists should be aware of this vascular anomaly and cyst-like lesions in the liver should be examined with color Doppler ultrasonography for possible vascularization, and be differentiated with CTA if necessary.

This condition is usually encountered incidentally and patients usually have no symptoms. However, severe complications, such as hepatopulmonary syndrome, liver tumors, encephalopathy, and heart failure can be seen.

Ulus S, Akan GE, Erol C. Aneurysm of Portosystemic Fistula: A Case Report and Review of Literature. Euroasian J Hepato-Gastroenterol 2017;7(2):178-180.