Computer Tomography of Congenital Absence of the Left Lobe of the Liver

: Computed tomography of absence of the left lobe of the liver is described. Liver scintigraphy may be misinterpreted as indicating tumor of the left lobe. Computed tomography correctly identifies absence of the left lobe and compensatory hyperplasia of the caudate lobe. Two illustrative cases with a peculiar "tongue-like projection" of the caudate lobe are presented.