Aberrant non-neoplastic liver tissue presenting as an intra-atrial mass

Commentary: A rare intracaval mass with intracardiac extension: A value of frozen section revisited?

“…More specifically, because of the close proximity of the caudate liver lobe to the inferior vena cava (IVC), during embryogenesis these regenerative hepatic cells have the potential to move to the IVC and then further to other areas of the body, including the heart chambers (Figure 1, C). 6,7 The accessory hepatic cells develop into ectopic hepatic tissue or, if they still remain connected to the liver, to the accessory hepatic lobe (AHL). Perhaps the predominant incidence of AHT in the adult population suggests that once regenerative hepatic cells seed the heart chambers, they rest within them for a period of time, and then some unknown stimuli could initiate their growth.…”