Journal of Korean Society of Ultrasound in Medicine 2007;26(2): 83-87.
Focal Sparing of the Fatty Liver Caused by a Nontumorous Arterioportal Shunt.
Min Woo Lee, Young Jun Kim, Hae Jeong Jeon, Nam Ju Lee, Sung Gyu Moon, Jeong Geun Yi
Department of Radiology, Konkuk University Hospital, Korea.
  Published online: June 1, 2007.
We present two cases of focal fatty sparing caused by a nontumorous arterioportal shunt. Two patients underwent ultrasonography (US) as a part of routine medical screening, which revealed a hypoechoic lesion in the diffuse fatty liver. Each lesion appeared to be an arterioportal shunt on triphasic mutidetector computed tomography (CT) and was seen as being slightly hyperdense on noncontrast CT. No tumors were delineated around or within the arterioportal shunt. Both lesions remained unchanged on six-month follow-up US.
Keywords: Arterioportal shunt; Fatty liver; Focal sparing; Liver, US
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