Luisa Costa Andrade, Presenter: Nothing to Disclose

Daniel Andrade MD, Abstract Co-Author: Nothing to Disclose

Maria Conceicao Sanches, Abstract Co-Author: Nothing to Disclose

Luis Curvo-Semedo MD, PhD, Abstract Co-Author: Nothing to Disclose

Filipe Caseiro-Alves, Abstract Co-Author: Nothing to Disclose

-To describe the imaging findings of focal liver lesions in the setting of vascular liver diseases, collected from our PACS from 2008 to 2013. -To explain the underlying pathophysiologic mechanism and rad-path correlation with cross-sectional imaging and hepatocyte-directed MR contrast agent. -To address the differential diagnosis and implications for patient management.

Benign focal liver lesions may be associated with congenital and acquired hepatic hemodynamic abnormalities. In this essay the authors will focus on the rad-path correlation of multiacinar nodular regenerative hyperplasia that develop in response to local or diffuse venous and/or arterial flow disturbances. These lesions may be associated with different types of vascular liver diseases such as Budd-Chiari syndrome, Rendu-Osler-Weber disease, congenital portosystemic shunts, congenital absence of the portal vein or sinusoidal obstructive syndrome. The chronic vascular injury causes progressive peri-venular and peri-portal fibrosis, ultimately leading to non-cirrhotic portal hypertension, a hallmark of the later stages of the vascular insult. A series of cases retrieved from the Hospital database will be presented, focusing on the imaging features that allow the differential diagnosis especially with HCC and metastases in the oncologic patient.

http://abstract.rsna.org/uploads/2014/14003880/14003880_yoyj.pdf

Andrade, L, Andrade, D, Sanches, M, Curvo-Semedo, L, Caseiro-Alves, F, Vascular Disturbances of the Liver and FNH-like Lesions: What Are They?.  Radiological Society of North America 2014 Scientific Assembly and Annual Meeting, - ,Chicago IL. http://archive.rsna.org/2014/14003880.html