Figure 3.

Portal vein widening over the experiment. (a) Parasagittal sonogram shows a straight and thin portal vein (diameter = 1.5 mm) in a Control group rat (arrowheads). (b) Parasagittal sonogram demonstrates a slightly tortuous and thin portal vein (diameter = 2.0 mm) in a rat with hepatic steatosis and fibrosis (arrowheads). (c) Parasagittal sonogram presents a tortuous and wide portal vein (diameter = 2.4 mm) in a cirrhotic rat (arrowheads).

Lessa et al. BMC Veterinary Research 2010 6:6   doi:10.1186/1746-6148-6-6
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