The<unk>  are considered as RASopathies and as members of the neurocutaneous syndromes (phakomatoses). The diagnosis of<unk>  is done via the following means: Differential diagnosis Conditions similar to<unk>  include:
Neurofibromatosis
Tuberous sclerosis
Fox–Fordyce disease
Ollier disease
Irlen syndrome
Progeria
Fabry disease
Degos disease