[Value of MRI in hepatic plexiform neurofibromatosis. Case report].

Neurofibromatosis of the liver is a rare localization of type 1 neurofibromatosis. In terms of nature and local extension of the tumor, MR imaging provided accurate information compared to ultrasonography and computed tomography scan. Furthermore, MR imaging should be the first line noninvasive exploration for follow-up or biopsy guidance if progression to sarcomatosis is suspected.