NF1 Neurofibromatosis Type 1 Severity Assessment

Score neurofibromatosis type 1 clinical severity across cutaneous neurofibromas, plexiform neurofibromas, Lisch nodules, café-au-lait spots, bone dysplasia, learning disability, and cardiovascular complications.

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Clinical Guidance

BMI is a screening measure of body size, not a direct measure of body fat. The standard WHO categories are underweight (<18.5), normal (18.5–24.9), overweight (25–29.9), and obese (≥30).

BMI can overestimate body fat in athletes with high muscle mass and underestimate it in older adults with low muscle mass. Interpret it alongside waist circumference and clinical context rather than as a standalone diagnosis.

⚕ Clinical Disclaimer: These calculators are for educational and reference purposes only. Always verify results with qualified clinical judgment and current clinical guidelines. Do not use as a sole basis for medical decisions.
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How It Works

Score neurofibromatosis type 1 clinical severity across cutaneous neurofibromas, plexiform neurofibromas, Lisch nodules, café-au-lait spots, bone dysplasia, learning disability, and cardiovascular complications

Each component has a specific meaning:

  • Cutaneous neurofibromas — The cutaneous neurofibromas recorded for the scenario being assessed.
  • Plexiform neurofibromas — The plexiform neurofibromas recorded for the scenario being assessed.
  • Lisch nodules — The lisch nodules recorded for the scenario being assessed.
  • Café-au-lait spots — The café-au-lait spots recorded for the scenario being assessed.
  • Bone dysplasia — The bone dysplasia recorded for the scenario being assessed.
  • Learning disability — The learning disability recorded for the scenario being assessed.

Note: Interpret the nf1 severity result against the thresholds and context described above.

How to Use

Enter the cutaneous neurofibromas, plexiform neurofibromas, Lisch nodules, café-au-lait spots, bone dysplasia, learning disability for the scenario you are assessing. Score neurofibromatosis type 1 clinical severity across cutaneous neurofibromas, plexiform neurofibromas, Lisch nodules, café-au-lait spots, bone dysplasia, learning disability, and cardiovascular complications. Use the nf1 severity result to inform your calculation.

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