Tale of Beaver Tailed Liver

Introduction: Liver presents with multiple variation with respect to lobes, fissure etc. Beaver tail liver is a tongueshaped elongated variant of the left lobe that is usually fused with the spleen at its capsule. This variant presentswith no abnormal symptoms or functions hence its development, morphology and clinical significance has beenstudied upon.Materials and Method: During routine dissection of 34 liver specimens, two livers presented with themorphological elongated left lobe variant encircling the spleen, classified under Netters as type 4 Beaver tail liver.Dimensions of elongated lobe was recorded and vasculature was dissected.Results: The elongated left lobe of the 2 livers measured 16.25 cm and 14.13cm respectively with a smoothbrownish black appearance encircling the spleen fused at the capsule presenting with type II Nakamura Portalvasculature and an accessory hepatic artery with different origins to supply the elongated left lobe.Conclusion: Beaver tail liver is accidentally discovered during a CT/MRI scan and is misdiagnosed as splenicmass, subcapsular hematoma or hepatosplenomegaly. The lack of symptoms, unique vasculature, normalhistology and no effect to physiological function indicates it a congenital formation and its larger liver volumemakes it suitable for live liver transplants as it reduces recovery time of the donor.