Diagnosing neurofibromatosis typically involves a combination of clinical evaluation, imaging studies, and genetic testing.
Medical History
- Family history of neurofibromatosis
- Previous diagnoses or symptoms
- Changes in hearing, vision, balance, or neurological function
Physical Examination
- Evaluation of skin findings, including café-au-lait spots and neurofibromas
- Neurological assessment
- Hearing and vision evaluation
Imaging Studies
- MRI scans to identify tumors affecting the brain, spinal cord, or nerves
- CT scans when additional imaging detail is needed
- Specialized imaging to evaluate tumor growth and progression
Genetic Testing
- Testing for NF1, NF2, SMARCB1, or LZTR1 gene mutations
- Confirmation of diagnosis in patients with uncertain clinical findings
- Screening for at-risk family members
Hearing and Vision Testing
- Audiology testing to assess hearing loss
- Ophthalmologic examinations to detect vision changes or optic pathway tumors
Biopsy
In some cases, a tissue sample may be obtained to evaluate a tumor and determine whether it is benign or malignant.
Diagnosis often involves collaboration among neurologists, neurosurgeons, genetic counselors, medical oncologists, radiation oncologists, neuroradiologists, and other specialists. A multidisciplinary approach helps ensure accurate diagnosis and personalized treatment planning.
