ICD-11 definition : 17q11 microdeletion syndrome is a rare severe form of neurofibromatosis type 1, characterized
by mild facial dysmorphism, developmental delay, intellectualdeficit, and large number
of neurofibromas.;
17q11 microdeletion syndrome is a rare severe form of neurofibromatosis type 1, characterized
by mild facial dysmorphism, developmental delay, intellectualdeficit, and large number
of neurofibromas.