Table 1.

Classification of neurofibromatosis (RICCARDI, 1982)

Type	Inheritance Pattern	Clinical Characteristics
Neurofibromatosis (NF1)	AD	CLS, neurofibromas, Lisch nodules, axillary freckling, bone and neurological alterations, benign and malignant neoplasms
Acoustic (NF2)	AD	Bilateral acoustic neuromas, few CLS and neurofibromas
Mixed (NF3)	AD	Combination of 1 and 2
Variant (NF4)	Unknown	Variations in CLS, neurofibromas, CNS neoplasms, Lisch nodules
Segmental (NF5)	Non-inheritable	Segmental neurofibromas and/ or CLS
Familial CLS (NF6)	Unknown	CLS
Late onset (NF7)	Unknown	After the third decade of life, neurofibromas, few CLS
Unspecified (NF8)	Unknown	Variable signs

AD = autosomal dominant CLS = familial cafe au lait spots