The development of hepatic cirrhosis triggers attempted repair through
regenerative nodules of parenchyma among bands of scar tissue. Some a
uthors believe that this regeneration initiates an evolutionary proces
s that may lead to nodular enlargement and cellular dedifferentiation
to malignancy [1]. Both the destructive and reparative processes in ci
rrhosis produce changes that the radiologist must recognize when imagi
ng the cirrhotic liver. This essay describes the CT and MR features of
masses and masslike lesions in the cirrhotic liver, including the ide
ntifying characteristics and overlapping appearances of CT and MR.