[1] CHU Grenoble, Pathol Cellulaire Lab, F-38043 Grenoble 9, France
[2] CHU Grenoble, Serv Chirurg Thorac, F-38043 Grenoble 9, France
[3] CHU Grenoble, Dept Hepatogastroenterol, F-38043 Grenoble 9, France
[4] CHU Grenoble, Dept Chirurg Digest, F-38043 Grenoble 9, France
[5] CHU Grenoble, Serv Radiol Cent, F-38043 Grenoble 9, France