Hepatocellular Adenoma and Focal Nodular Hyperplasia

Unclassified hepatic hepatocellular adenoma in men still a diagnosis by exclusion: Case report and review of the literature.

“…As in our case, non-specific abdominal pain constituted a revealing circumstance [5]. Elsewhere, clinical manifestations varied from the absence of clinical signs in 50% cases to acute symptoms due to tumor rupture or bleeding [5,6].…”

“…Unclassified hepatocellular adenoma accounted for 5 to 10% of all hepatocellular adenomas [3,4]. It occurred in non-cirrhotic livers [5]. As in our case, non-specific abdominal pain constituted a revealing circumstance [5].…”

A growing liver anastomosing hemangioma

“…At higher magnification, the lesions consisted of anastomosing sinusoidal capillary-sized vessels accompanied by scattered hobnail endothelial cells ( Figure 3B ). The corresponding central scar on the MRI images pathologically showed a fibrotic area with few cells and vessels ( Figure 3C ), which mimicked the fibrous septa, bile ductal proliferation, inflammation, and abnormal blood vessels in FNH ( 18 ). This fibrotic area presented as hyperintense on T2WI and hypointense on T1WI images, with the delayed enhancement pattern consistent with the characteristics of fibrous tissue and vessels.…”

Ablation for Benign Liver Tumors: Current Concepts and Limitations

“…The burden on patients undergoing MWA may be smaller than in patients undergoing surgical treatment in terms of operative time, complications, and duration of hospital stay. However, for patients undergoing 45 or FNH, 46,47 the effectiveness of ablation for such tumors should be investigated in future studies. At this time, there are some limitations in this field.…”