Fig. 3

Macroscopic and microscopic view of the mass. Macroscopic and microscopic view of the mass. A A well-demarcated, solitary brown–orange lesion with a central scar. B Focal nodular hyperplasia is composed of bland hepatocytes surrounded by fibrous septa, pointed by arrows, containing artery branches. C A med large-sized, thick walled muscular vessel with hyperplastic changes is demonstrated by the arrow. D The arrow points to ductular reaction that is a characteristic feature of focal nodular hyperplasia