Neurofibromatosis Diagnosis

How will your doctor diagnose you with this condition? Learn about the tests, exams, processes, and other information relating to the diagnosis of Neurofibromatosis below.

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How to Diagnose Neurofibromatosis


The doctor will ask about your:

  • Symptoms
  • Medical history
  • Family medical history

The doctor will also do a physical exam. The diagnosis is generally made based on physical findings. Examples include:

  • Cafe-au-lait spot (main sign of NF)-Adults with six or more spots greater than 1.5 cm in diameter are likely to have NF.
  • Freckling in the armpits, groin, or underneath the breast in women
  • Multiple soft tumors apparent on the skin or deeper in the body viewed by radiologic testing (scans)
  • Soft nodules under the skin
  • Large infiltrating tumors under the skin, which can cause disfigurement and can progress to become malignant peripheral nerve sheath tumors
  • Pigmented, raised spots on the colored part of the eye

Tests for NF1 may include:

  • Exam by a doctor familiar with NF1 (eg, neurologist, geneticist, dermatologist)
  • Eye exam by an ophthalmologist familiar with NF1
  • Removal of neurofibromas for testing
  • Other specific tests associated with complications
  • MRI scan-a test that uses magnetic waves to make pictures of structures inside the brain
  • Genetic testing-available for families with a history of NF1 and NF2. Prenatal diagnosis may be possible with amniocentesis or chorionic villus sampling.


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Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition. Copyright ©2013 EBSCO Publishing All rights reserved. Source: EBSCO