7.4.2 Headache attributed to carcinomatous meningitis


Headache caused by carcinomatous meningitis, usually accompanied by signs of encephalopathy and/or cranial nerve palsies.

Diagnostic criteria:
  1. Any headache fulfilling criterion C
  2. Carcinomatous meningitis (in the presence of systemic neoplasia known to be associated with carcinomatous meningitis) has been demonstrated
  3. Evidence of causation demonstrated by at least two of the following:
    1. headache has developed in temporal relation to development of the carcinomatous meningitis
    2. either or both of the following:
      • a) headache has significantly worsened in parallel with worsening of the carcinomatous meningitis
      • b) headache has significantly improved in parallel with improvement in the carcinomatous meningitis
    3. headache is associated with cranial nerve palsies and/or encephalopathy
  4. Not better accounted for by another ICHD-3 diagnosis.