13.3.2.3 Painful nervus intermedius neuropathy attributed to other disorder

Description:

Unilateral continuous or near-continuous pain, with or without superimposed brief paroxysms, in the distribution of nervus intermedius and caused by a disorder other than herpes zoster infection. There may be other symptoms and/or clinical signs of the causative disorder.

Diagnostic criteria:
  1. Unilateral continuous or near-continuous pain1 in the distribution of nervus intermedius2, fulfilling criterion C
  2. A disorder affecting nervus intermedius, other than herpes zoster infection but known to be able to cause painful nervus intermedius neuropathy, has been diagnosed3
  3. Pain has developed after onset of the disorder, or led to its discovery
  4. Not better accounted for by another ICHD-3 diagnosis.
Notes:
  1. Brief paroxysms may be superimposed, but are not the predominant pain type.
  2. In the auditory canal, auricle and/or region of the mastoid process.
  3. 13.3.2 Painful nervus intermedius neuropathy has been rarely described in patients with facial tumours or injury to the geniculate ganglion.