Both SUNCT syndrome and idiopathic stabbing headache (ISH) (jabs and jolts
syndrome) have to he considered when encountering shortlasting headaches. S
ince there are no specific tests for these headaches, the differential diag
nosis depends entirely upon assessment of the clinical features. These head
aches are generally easily distinguishable clinically. There seem to be sym
ptomatic forms of SUNCT.