Fig. 5
From: Fatty liver deposition and sparing: a pictorial review
a–d Perivesicular fatty sparing. a Ultrasound image in a 77-year-old woman who had nephrectomy for renal cell carcinoma shows a hyperechoic liver with hypoechoic perivesicular foci. b CT, axial contrast-enhanced portal phase image shows a diffusely hypodense liver (57 HU) in comparison with the spleen (135 HU) with a perivesicular spared zone (in segments IV and V). MRI, c axial T1-weighted in-phase and d out-of-phase images show an important signal drop of the liver on the opposed-phase image with the exception of a perivesicular spared zone