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Neurofibromatosis is any of a number of distinct genetic conditions that result in a high probability of tumor formation. The conditions are caused by inheriting the single defective gene from a parent with the condition or by random mutation. However, in any given patient, the disease can be of varying severity due to the expression of other related genes. They fall into three categories:

  • Type I – the tumors are generally benign, but can compress nerves and other tissues, can cause vision disturbance if it is on the optic nerve, scoliosis, TDAH,...
  • Type II – where the tumors forms around the acoustic nerves, leading to hearing loss
  • Schwannomatosis – where painful schwannomas grow around several different types of nerves

Neurofibromatosis at Wikipedia

Neurofibromatosis type II at Wikipedia

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