Neurofibromatosis (NF) is a group of three conditions in which tumors grow in the nervous system. The three types are neurofibromatosis type I (NF1), neurofibromatosis type II (NF2), and schwannomatosis. [Source: Wikipedia ]

Neurofibromatosis type 1
Neurofibromatosis type 2
May Cause
Abnormal abdominal vessels
Abnormal contour of calvarium
Absent vertebral pedicle
Aneurysm of abdominal aorta or its branches
Antegonial notching of the mandible
Anterior beaked vertebrae in a child
Anterior third ventricle lesion
Anterior vertebral scalloping
Aortic aneurysm
Aortic stenosis
Arterial aneurysm
Arterial dilatation
Arterial occlusion
Arterial rupture
Asymmetrically large bones of one hand
Basal ganglion calcification
Bilateral basilar lung disease
Bladder dysfunction
Body asymmetry
Bowed bones
Bowed tubular bones
Cerebral vasculitis
Cerebrovascular malformation
Cherubic facies
Coarctation of aorta
Colonic distention without obstruction
Congenital brain malformation
Congenital elbow anomaly
Congenital foot deformity
Congenital heart disease
Congenital macrocephaly
Congenital skull defect
Congenital vertebral abnormality
Congenital widespread osteosclerosis
Corneal abnormality
Cortical bone thickening
Cyst-like mandibular lesion
Cystic jaw lesion
Diffusely dense skull base
Dysplastic sella turcica
Dysplastic vertebral pedicle
Elbow dislocation
Enlarged intervertebral foramen
Enlarged nerve roots
Enlarged superior orbital fissure
Enlarged thumb
Enlargement or erosion of sella turcica
Erosion or widening of the internal auditory meatus
Extraorbital extracranial lesion extending to the orbit
Eyelid ptosis
Gastrointestinal system bleeding
Genu valgum
Genu varum
Hypoplastic vertebral pedicle
Incomplete ossification of cranial sutures
Inner ear anomaly
Interstitial lung fibrosis
Isolated tibial bowing
J-shaped sella turcica
Large orbit
Large penis
Large sella turcica
Limb asymmetry
Localized bone overgrowth
Localized bony defect about the optic canal
Localized large epiphyses
Localized skull thinning
Long thin bones
Malformed orbit
Middle cranial fossa lesion
Middle ear anomaly
Multiple filling defects in colon
Multiple intracranial calcification
Multiple well-defined radiolucent jaw lesions
Nerve calcification
Neurogenic bladder
Optic canal enlargement
Orbital bony defect
Orbital dysplasia
Pes planus
Polyostotic bone lesions in adults
Polyostotic bone lesions in an infant or young child
Polyostotic bone lesions in children
Posterior vertebral scalloping
Precocious puberty
Predominantly ectodermal phakomatosis
Pulmonic stenosis
Radiolucent skull lesion
Renal artery aneurysm or microaneurysm
Small optic canal
Small orbit
Solitary osteolytic skull lesion
Spool-shaped vertebrae
Systemic hypertension
Systemic hypotension
Tam-o-shanter skull
Thick periosteal reaction along bone shaft
Tibiotalar tilt
Twisted bones
Unilateral exophthalmos
Ventricular septal defect
Well-defined expansile radiolucent jaw lesion
Widespread osteosclerosis
Widespread osteosclerosis of medullary and cortical bone
Widespread periosteal reaction
Widespread small irregular lung opacities