<prompt> The number of Neurofibromas as one of the diagnostic criteria for adult neurofibromatosis type-I -1246  <response>: Ans. is b i.e., 2o Repeat from previous.o Presence of two or more neurofibromas of any type constitutes one of the diagnostic criterias for diagnosis of neurofibromatosis Type-1.o The diagnostic criteria for diagnosis of neurofibromatosis Type-1 include six or more cafe-au-lait spots: Two or more neurofibromas of any type, or one or more plexiform neurofibromas; Two or more Lisch nodules benign iris hamartomas. 