[1] Univ Paris Diderot, Paris 7, France
[2] Hop Lariboisiere, Dept Medicochirurg Pathol Digest, F-75475 Paris 10, France
[3] Hop Lariboisiere, Dept Anatomopathol, F-75475 Paris 10, France
[4] Hop Lariboisiere, Equipe Angiogenese & Rech Translat, Unite Inserm U965, Inst Vaisseaux & Sang, F-75475 Paris 10, France