Headache, usually progressive, worse in the morning and aggravated by Valsalva-like manœuvres, caused by one or more space-occupying intracranial tumours.
A. Headache fulfilling criterion C
B. A space-occupying intracranial neoplasm has been demonstrated
C. Evidence of causation demonstrated by at least two of the following:
1. headache has developed in temporal relation to development of the neoplasm, or led to its discovery
2. either or both of the following:
a) headache has significantly worsened in parallel with worsening of the neoplasm
b) headache has significantly improved in temporal relation to successful treatment of the neoplasm
3. headache has at least one of the following three characteristics:
b) worse in the morning or after daytime napping
c) aggravated by Valsalva-like manœuvres
D. Not better accounted for by another ICHD-3 diagnosis.