Table 1.

Summary of intrahepatic portosystemic shunts.

Etiology	Intrahepatic portosystemic shunts can be acquired (secondary to cirrhosis, trauma, or biopsy procedure) or congenital.
Incidence	Age of presentation young to middle age.
Gender	Both males and females are affected.
Treatment	Endovascular treatment (occlusion with coil or Amplatzer vascular plug), surgical ligation, or resection.
Prognosis	May be asymptomatic. Can resolve spontaneously. If symptomatic, there is good prognosis with treatment.
Findings on imaging	Doppler US: presence of vascular structures connecting a portal branch to a hepatic vein with or without aneurysm formation. Undulating triphasic waveform pattern in the portal vein similar to hepatic waveform.
	CT/MRI with contrast: presence of vascular structures connecting a portal branch to a hepatic vein with or without aneurysm formation.