Trigeminal neuralgia (TN) is a clinical diagnosis. Distinguishing between classic (idiopathic) trigeminal neuralgia (CTN) and symptomatic TN (STN) is done through history taking, clinical examination (to identify non-trigeminal neurological signs), and neuroimaging, which may identify a cause in up to 15% of patients.[18]

BMJ Best Practice is an evidence-based point of care tool for healthcare practitioners.

To continue reading and access all of BMJ Best Practice's pages you'll need to log in or start a free trial.

You can access through your institution if your hospital, university, trust or other institution provides access to BMJ Best Practice through either OpenAthens or Shibboleth.

Use of this content is subject to our disclaimer